The TSD series evolved as a prime forum for interaction between researchers in both spoken and written language processing from all over the world.  The conference program will include presentation of invited papers (keynote speeches), oral presentations, and poster/demonstration sessions. Papers will be presented in plenary or topic oriented sessions.

TSD2021 is going to take place in the beautiful city of Olomouc, Czech Republic. Thus, it is nicely colocated with Interspeech 2021 which is going to be held in Brno, Czech Republic. But as the situation in September 2021 cannot be easily predicted, the TSD2021 organizing committee is ready to organize a virtual conference, if necessary.

TABLEAUX is the main international conference at which research on all aspects -- theoretical foundations, implementation techniques, systems development and applications -- of tableaux-based reasoning and related methods is presented.

TABLEAUX 2021 will be co-located with the 13^th International Symposium on Frontiers of Combining Systems (FroCoS 2021). The conferences will provide a rich programme of workshops, tutorials, invited talks, paper presentations and system descriptions.

The progress in computer-aided reasoning, both automatic and interactive, during the past decades, has made it possible to build deduction tools that are increasingly more applicable to a wider range of problems and are able to tackle larger problems progressively faster. In recent years, cooperation of such tools in larger verification environments has demonstrated the potential to reduce the amount of manual intervention. Examples include the Sledgehammer tool providing an interface between Isabelle and (untrusted) automated provers, and collaboration of the HOL Light and Isabelle systems in the formal proof of the Kepler conjecture.

Cooperation between reasoning systems relies on availability of theoretical formalisms and practical tools for exchanging problems, proofs, and models. The PxTP workshop strives to encourage such cooperation by inviting contributions on suitable integration, translation, and communication methods, standards, protocols, and programming interfaces. The workshop welcomes developers of automated and interactive theorem proving tools, developers of combined systems, developers and users of translation tools and interfaces, and producers of standards and protocols. We are interested both in success stories and descriptions of current bottlenecks and proposals for improvement.

The FOIS conference is a meeting point for all researchers with an interest in formal ontology. Formal ontology is the systematic study of the types of entities and relations making up the domains of interest represented in modern information systems. FOIS is the flagship conference of the International Association for Ontology and its Applications (IAOA) and aims to be a nexus of interdisciplinary research and communication, inclusive of researchers from many domains engaging with formal ontology.

FOIS 2021 is planned as a hybrid event: there will be a physical meeting in Bozen-Bolzano, Italy, with a remote participation option. FOIS 2021 includes a number of activities: FOIS conference (single track program), workshops, tutorials, an early-career symposium, a demo and industry track, and an ontology show and tell.

The journal Linguistics and Philosophy (L&P) have agreed to publish a special issue of Super Linguistics. Super Linguistics subsumes the application of formal linguistic methodology and methodologies inspired by formal linguistics to diverse non-standard objects. In addition to manuscripts by linguists, we welcome submissions from all relevant fields (such as, but not limited to, biology and musicology) provided that they are super linguistic in nature. To be considered, the manuscript should include a short paragraph outlining in what way the research is super linguistic in nature and how the research advances this new sub-field. Submissions must propose a clear formal analysis based on rich and detailed data. The manuscript submission deadline for this special issue is April 23rd 2021.

The Student Session of the 32nd European Summer School in Logic, Language, and Information (ESSLLI) will take place online during ESSLLI 2021 at Utrecht University, the Netherlands, August 2nd to 13th, 2021.

Computer Theorem Proving is becoming a paradigm as well as a technological base for a new generation of educational software in science, technology, engineering and mathematics. The workshop brings together experts in automated deduction with experts in education in order to further clarify the shape of the new software generation and to discuss existing systems.

ThEdu'21 will be virtual as part of the 28th International Conference on Automated Deduction (CADE-28), the exact details will be in the workshop Web-page as soon as possible. Invited Talk: Gilles Dowek, ENS Paris-Saclay.

The Logic Colloquium is the European Summer Meeting of the Association for Symbolic Logic, an international organization supporting research and critical studies in logic. Its primary function is to provide an effective forum for the presentation, publication, and critical discussion of scholarly work in this area of inquiry.

The program will feature special sessions on Set Theory, Model Theory, Modal and Epistemic Logic, Proofs and Programs, Computability, and Logic in Cognitive Science and Linguistics.

Due to public health concerns regarding COVID-19, the ASL Executive Committee, in consultation with the local organizers and the ASL European Committee, has made the decision to postpone the 2020 Logic Colloquium. It will take place on July 19-24, 2021, approximately a year later than originally scheduled, as an on-line event.

We invite contributions to the Special Issue of Logic and Logical Philosophy (LLP): "Relating Logic and Relating Semantics". Guest editors: Tomasz Jarmużek (Nicolaus Copernicus University in Toruń) and Francesco Paoli (University of Cagliari, Italy).

High quality research papers concerning theory and applications of relating logics and relating semantics, including, but not limited to, the following topics, are welcome:
- applications of relating semantics,
- algebraic interpretation of relating logics,
- comparison of relating semantics with other formal semantics, - history of relating logics,
- modal extensions of relating logics,
- model theory of relating logics,
- philosophical logics defined by relating semantics,
- proof theory for relating logics,
- philosophical foundations of relating logics,
- other related topics (like dependence logic, set-assignment semantics etc.).
Contributions are welcome from philosophers, logicians, mathematicians, linguists, and computer scientists.

The Women in Logic workshop (WiL) provides an opportunity to increase awareness of the valuable contributions made by women in the area of logic in computer science. Its main purpose is to promote the excellent research done by women, with the ultimate goal of increasing their visibility and representation in the community. Women in Logic 2021 is a satellite event of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science (LICS'21) to be held virtually on June 29-July 2, 2021.

Our aim is to:
- provide a platform for female researchers to share their work and achievements;
- increase the feelings of community and belonging, especially among junior faculty, post-docs and students through positive interactions with peers and more established faculty;
- establish new connections and collaborations;
- foster a welcoming culture of mutual support and growth within the logic research community.
We believe these aspects will benefit women working in logic and computer science, particularly early-career researchers.

Invited speakers: Simona Ronchi Della Rocca, Rineke Verbrugge.

Computational and technological developments that incorporate natural language and reasoning methods are proliferating. Adequate coverage encounters difficult problems related to partiality, underspecification, agents, and context dependency, which are signature features of information in nature, natural languages, and reasoning.

The session covers theoretical work, applications, approaches, and techniques for computational models of information, language (artificial, human, or natural in other ways), reasoning. The goal is to promote computational systems and related models of thought, mental states, reasoning, and other cognitive processes.

The biennial ECSQARU conferences constitute a major forum for advances in the theory and practice of reasoning under uncertainty, with a focus on bringing symbolic and quantitative aspects together. Contributions come from researchers interested in advancing the scientific knowledge and from practitioners using uncertainty techniques in real-world applications. The scope of the ECSQARU conferences encompasses fundamental issues, applications, representation, inference, learning, and decision making in qualitative and numeric uncertainty paradigms.

BEST is an international conference featuring talks on a broad range of recent advances in research in set theory and related fields. Researchers from all areas of set theory and logic are welcome. BEST particularly aims to support the careers of young researchers. The conference is organized by the Set Theory group at Boise State University.

The growing cultural import of computing practices has become ever more pressing in our days in all dimensions of social life. The global and collective nature of the challenges our epoch is facing (e.g. climate change, global pandemics, systemic inequalities, resurgence of totalitarianism, to name a few) requires a comprehensive perspective on computing, where social and cultural aspects occupy a central position. For these reasons, thinking about machines asks today for an interdisciplinary approach, where art is as necessary as engineering, anthropological insights as important as psychological models, and the critical perspectives of history and philosophy as decisive as the axioms and theorems of theoretical computer science.

For more than a decade, the 'History and Philosophy of Computing' Conference (HaPoC) has contributed to building such an interdisciplinary community and environment. We aim to bring together historians, philosophers, computer scientists, social scientists, designers, manufacturers, practitioners, artists, logicians, mathematicians, each with their own experience and expertise, to take part in the collective construction of a comprehensive image of computing.

Stateful entities offer services in a non-uniform way (one cannot pop from an empty stack). Traditional type systems cannot guarantee that operations are only invoked when the entity is in the right state. Session types are abstract representations of the sequences of operations that computational entities (such as channels or objects) must perform. Although the foundations of session types are now well established, and new works build on approaches that have become standard, there is still a lack of reusable libraries, namely machine-verified ones.

The goal of the VEST workshop is to gather the researchers working on mechanisations of behavioural types using various theorem provers, such as Agda, Coq, Isabelle or any other. The workshop will be a platform to present both the now well-established efforts and the ongoing works the community has put on verification. The workshop will also be a forum to discuss strengths and weaknesses of existing approaches, potential obstacles and to foster collaboration.

Since the first conference held in Marseille in 1982, the International Conference on Logic Programming (ICLP) has been the premier international event for presenting research in logic programming.

Besides the main track, ICLP 2021 will host additional tracks and special sessions:
 - Applications Track
 - Recently Published Research Track
 - MentorLP - Mentoring Workshop on Logic Programming
 - Fall School on Logic and Constraint Programming
 - Doctoral Consortium: the Doctoral Consortium (DC) on Logic
 - Tutorials and Co-located Workshops.

Large-scale semantic processing and strong computer assistance of mathematics and science is our inevitable future. New combinations of AI and reasoning methods and tools deployed over large mathematical and scientific corpora will be instrumental to this task. The AITP conference is the forum for discussing how to get there as soon as possible, and the force driving the progress towards that.

There will be several focused sessions on AI for ATP, ITP, mathematics, physics, relations to general AI, Formal Abstracts, linguistic processing of mathematics/science, modern AI and big-data methods, and several sessions with contributed talks. The focused sessions will be based on invited talks and discussion oriented.

The aim of the FMICS conference series is to provide a forum for researchers who are interested in the development and application of formal methods in industry. FMICS brings together scientists and engineers who are active in the area of formal methods and interested in exchanging their experiences in the industrial usage of these methods. The FMICS conference series also strives to promote research and development for the improvement of formal methods and tools for industrial applications.

FMICS 2021 is part of the QONFEST umbrella conference. This year, a special session will be included on Formal Methods for Blockchain-based Smart Contracts along with a panel on this topic. Keynote Speaker: Joe Kiniry (Galois Inc. and Free & Fair, US).

Online instruction of formal methods has been a challenge in the last year, including teaching of basics of logics and automata theory, formal verification, theorem proving etc. This satellite workshop of ICALP brings together instructors of formal methods as well as developers of teaching support systems for formal methods to (1) present tools supporting teaching of formal methods education, and (2) discuss tips, tricks & experiences in online instruction gained in the last year.

The International Conference on Logic, Rationality and Interaction (LORI) conference series aims at bringing together researchers working on a wide variety of logic-related fields that concern the understanding of rationality and interaction. The series aims at fostering a view of Logic as an interdisciplinary endeavor, and supports the creation of an East-Asian community of interdisciplinary researchers.

The RAMiCS conference series has been the main venue for research on relation algebras, Kleene algebras and similar algebraic formalisms, and their applications as conceptual and methodologica tools in computer science and beyond.

CiE 2021 is the seventeenth conference organized by the Association Computability in Europe. The 'Computability in Europe' conference (CiE) series has built up a strong tradition for developing a scientific program which is interdisciplinary at its core bringing together all aspects of computability and foundations of computer science, as well as the interplay of these theoretical areas with practical issues in CS and other disciplines such as biology, mathematics, history, philosophy, and physics.

Due to the current pandemic CiE 2021 will be held as a virtual conference. CiE 2021 will be the second CiE conference that is organized as a virtual event and aims at a high-quality meeting that allows and invites active participation from all participants. It will be hosted virtually by Ghent University.

WoLLIC is an annual international forum on inter-disciplinary research involving formal logic, computing and programming theory, and natural language and reasoning. Each meeting includes invited talks and tutorials as well as contributed papers. The twenty-seventh WoLLIC will be held online from October 5 to 8, 2021.

WoLLIC 2021 is planned to have a special session with the exhibition of a one-hour documentary film 'Secrets of the Surface - The Mathematical Vision of Maryam Mirzakhani' about a remarkable mathematician whose contributions were recognized with a Fields Medal just a few years before her untimely death.

The Australasian Association for Logic will hold its annual conference online via Zoom from Wednesday, June 23 to Friday, June 25, 2021. It will be hosted by the University of Queensland and the University of Melbourne.

There will be three keynote speakers. The keynote speakers confirmed are Xavier Caicedo (Los Andes), Catarina Dutilh Novaes (VU Amsterdam) and Katalin Bimbó (Edmonton).

SWODCH 2021 is the association of the 2nd edition of WODHSA and the 4th edition of SW4CH. It is also in continuation of the 1st edition of ODOCH and the special issue of the Semantic Web journal on "Semantic Web for Cultural Heritage".

The purpose of WODHSA is to gather original research work about both application and foundational issues emerging from the design of conceptual models, ontologies, and Semantic Web technologies for the Digital Humanities (DH). The aim of SW4CH is to bring together stakeholders from various scientific fields, Computer Scientists, Data Scientists and Digital Humanists, involved in the development or deployment of Semantic Web solutions for Cultural Heritage. The overall goal of SWODCH 2021 is to provide a scientific forum where scholars and stakeholders will have the opportunity to exchange ideas, experiences, and analyses, while presenting realizations and outcomes of relevant projects and discussing the related challenges.

Due to the COVID-19 restrictions, the workshop will have a hybrid format, allowing both physical and virtual participation.

"Concepts in Action: Representation, Learning, and Application" (CARLA) is an international workshop aimed at fostering interdisciplinary exchange about research on concepts. The workshop is open for research on any aspect of concepts, but there are three overarching topics that are of special interest with the following (not exhaustive) list of exemplary subtopics:

 - Representation: How can we formally describe and model concepts?
 - Learning: Where do concepts come from and how are they acquired?
 - Application: How are concepts used in cognitive tasks?

This workshop provides an excellent opportunity to present and discuss ongoing research on concepts, both from theoretical/formal and applied/experimental viewpoints. CARLA 2021 is currently planned to be conducted as a *hybrid* event allowing for both physical and virtual attendance. Invited Speakers: Monique Flecken and Antonio Lieto.

The Italian Conference on Theoretical Computer Science (ICTCS) is the conference of the Italian Chapter of the European Association for Theoretical Computer Science. The purpose of ICTCS is to foster the cross-fertilization of ideas stemming from different areas of theoretical computer science. In particular, ICTCS provides an ideal environment where junior researchers and PhD students can meet senior researchers.

Symbolic Computation is the science of computing with symbolic objects (terms, formulae, programs, representations of algebraic objects etc.). Powerful algorithms have been developed during the past decades for the major subareas of symbolic computation: computer algebra and computational logic. Meanwhile, artificial intelligence methods and machine learning algorithms are widely used nowadays in various domains and, in particular, combined with symbolic computation. Several approaches mix artificial intelligence and symbolic methods and tools deployed over large corpora to create what is known as cognitive systems. Cognitive computing focuses on building systems which interact with humans naturally by reasoning, aiming at learning at scale.

The purpose of SCSS 2021 is to promote research on theoretical and practical aspects of symbolic computation in software science, combined with modern artificial intelligence techniques.

Initially scheduled on August 26-28 2020 at NYC SUNY Global Center, ICGI’20 will be held on-line at the end of the summer 2021. This bi-annual conference focuses on all aspects of grammar learning, including (but not limited to) theoretical and experimental analysis of different models of grammar induction, and algorithms for induction of different classes of languages and automata.

This edition will provide a particular insight on the relation with connectionist models such as neural networks: tutorials of the first day will focus on that subject and authors are encouraged to submit works on that subject.

The "Formal Philosophy" is an annual conference organized by the HSE International Laboratory for Logic, Linguistics and Formal Philosophy. The confernce will be dedicated to various topics in the fields of  philosophical logic, formal epistemology, formal ontology, philosophy of logic, epistemology of logic, and other branches of formal and mathematical philosophy.

This year we are also planning two special sessions:
 - session on formal ethics
 - special session dedicated to the centennial of the publication of the "Tractatus Logico-Philosophicus".

The main goal of this workshop is to bring together key people from various subcommunities of automated reasoning -such as SAT/SMT, resolution, tableaux, theory-specific calculi (e.g. for description logic, arithmetic, set theory), interactive theorem proving - to discuss the present, past, and future of the field. The intention is to provide an opportunity to discuss broad issues facing the community. What are the current challenges, applications, directions, or exemplary achievements of Automated Reasoning?

The structure of the workshop will be informal. At the event, contributions will be grouped into similar themes and authors will be invited to make their case within discussion panels. After the workshop, they will be welcome to extend their abstracts for inclusion in post-proceedings (EPiC or similar), taking into account the discussion.

PotsDial will be the 25th edition of the SemDial workshop series, which aims to bring together researchers working on the semantics and pragmatics of dialogue in fields such as formal semantics and pragmatics, computational linguistics, artificial intelligence, philosophy, psychology, and neuroscience. In 2021 the workshop will be hosted by the Department of Linguistics at the University of Potsdam, Germany. (If the pandemic situation allows for it, there will be a local component for those who want to travel to Potsdam, but fully remote participation, including presentation, will be possible. Please see the website for updates closer to the date.)

In his recent book 'Thin Objects: An Abstractionist Account' (Oxford University Press, 2018), Øystein Linnebo claims that mathematical objects are thin in the sense that "very little is required for their existence". Linnebo articulates this view in terms of Fregean abstraction principles, arguing that it is sufficient for abstract objects to exist that some nonabstract objects, or pluralities thereof, stands in the appropriate equivalence relations. Linnebo set up, among others, a defence of predicative vis-á-vis impredicative abstraction, and articulates a 'dynamic' approach to abstraction itself, on which abstraction is taken to extend the domain of objects available for quantification, and predicative abstraction is iterated over larger and larger domains.

The goal of this Special Issue is to bring together contributions addressing both the philosophical and the technical aspects of Linnebo's book, also in connection to similar proposals in the philosophy of mathematics and logic. Contributions to the Special Issue should consist in short papers (4000-6000 words). Øystein Linnebo will contribute a précis of his book, opening the issue, and a 'Reply to Critics', closing the issue.

Logics of dependence and independence are novel extensions of classical logics aiming at characterizing dependence and independence notions in sciences. This field of research has grown rapidly in recent years. The framework of the logics has found applications also in fields like database theory, linguistics, social choice, quantum physics and so on. This workshop will bring together researchers from all these relevant areas and provide a snapshot of the state of the art of logics of dependence and independence.

This workshop is organized as part of the 32nd European Summer School in Logic, Language and Information (ESSLLI 2021): https://www.esslli.eu. The workshop has a 2-day program. The exact dates will be announced soon, see ESSLLI homepage for updates.

CALCO is a high-level, bi-annual conference formed by joining the forces and reputations of CMCS (the International Workshop on Coalgebraic Methods in Computer Science) and WADT (the Workshop on Algebraic Development Techniques). It aims to bring together researchers with interests in both foundational and applicative uses of algebra and coalgebra in computer science, traditional as well as emerging ones. The 9th edition will be held in Salzburg, Austria, colocated with MFPS XXXVII.

MFPS conferences are dedicated to the areas of mathematics, logic, and computer science that are related to models of computation in general, and to semantics of programming languages in particular. This is a forum where researchers in mathematics and computer science can meet and exchange ideas. The participation of researchers in neighbouring areas is strongly encouraged.

MFPS 2021 is co-located with the 9th Conference on Algebra and Coalgebra in Computer Science (CALCO 2021). Due to the pandemic situation, the conference will take place online. Should the situation improve and allow some international travel, we will do our best to organize a small component of the meeting in Salzburg for those participants who wish to attend the meeting in person.

Under the auspices of the Association for Logic, Language, and Information (FoLLI), the European Summer School in Logic, Language, and Information (ESSLLI) runs every year. Except for 2021, where the school will be virtual, it runs in a different European country each year. It takes place over two weeks in the summer, hosts approximately 50 different courses at both introductory and advanced levels, and attracts around 400 participants from all over the world.

The main focus of ESSLLI is the interface between linguistics, logic and computation, with special emphasis in human linguistic and cognitive ability. Courses, both introductory and advanced, cover a wide variety of topics within the combined areas of interest: Logic and Computation, Computation and Language, and Language and Logic. Workshops are also organized, providing opportunities for in-depth discussion of issues at the forefront of research, as well as a series of invited evening lectures.

The DL workshop is the major annual event of the description logic research community. It is the forum in which those interested in description logics, both from academia and industry, meet to discuss ideas, share information and compare experiences.

The aim of GandALF 2021 is to bring together researchers from academia and industry which are actively working in the fields of Games, Automata, Logics, and Formal Verification. The idea is to cover an ample spectrum of themes, ranging from theory to applications, and stimulate cross-fertilization.

This year, GANDALF will be organised together with the 3rd Workshop on Artificial Intelligence and fOrmal VERification, Logic, Automata, and sYnthesis (OVERLAY 2021). The OVERLAY workshop focuses on the relationships between Artificial Intelligence and Formal Methods, and discusses on the opportunities and challenges at the border of the two areas.

GANDALF 2021 is planned to be a hybrid conference. We aim at organizing an in-presence event, but there will be possibilities for virtual participation for delegates affected by travel restrictions.

CLAR 2021 will be held in Hangzhou at Zhejiang University City College. Due to the uncertainties of the epidemiological situation, the conference will be held in a HYBRID format (virtual and physical attendance both accepted), and we encourage physical participation if possible.

The CLAR 2021 conference will highlight recent advances in logic and argumentation and foster interaction between these areas within and outside China.

The Novembertagung on the History and Philosophy of Mathematics is an annual international conference aimed at graduate students in the history and philosophy of mathematics and neighboring fields. It provides an opportunity for young researchers to present and discuss their research in a safe, informal environment, and serves as a place for them to share experience and advice, as well as to establish new contacts. Participants are welcome from around the world.

On the Theme: Crisis, instability and times of uncertainty undoubtedly influenced the development of the sciences, and mathematics is no exception. Throughout history, mathematicians found themselves facing wide-ranging challenges, both internal and external to mathematics, to which they had to respond in new and creative ways. Inspired by contemporary global events, this conference is interested in the ways that times of crisis shaped the development of mathematics. The time of uncertainty might be frustrating and confounding for the mathematicians, but from a historical perspective it can be viewed as an engine of mathematical creativity.

Computer Science Logic (CSL) is the annual conference of the European Association for Computer Science Logic (EACSL). It is an interdisciplinary conference, spanning across both basic and application oriented research in mathematical logic and computer science.

CSL'22 will be held on February 14 - 19, 2022, in Göttingen, Germany. Currently, we expect that the conference will be organized in a hybrid way: both with an in-presence component and an online component.

Arguments vary in strength. The strength of an argument is affected by e.g. the plausibility of its premises, the nature of the link between its premises and conclusion, and the prior acceptability of the conclusion. The aim of this workshop is to bring together experts from the fields of artificial intelligence, philosophy, logic, and argumentation theory to discuss questions related to the strength of arguments.

Originally planned for 2020, after consideration the organizers decided to postpone the workshop in light of the current COVID-19 crisis.

UNILOG is a series of events (combining a congress and a school) promoting logic in all its aspects (mathematical, philosophical, computational, semiological, historical), as well as the relation between logic and other fields.

Due to the pandemic the organizers have decided to postpone the 7th edition of UNILOG to spring 2022. In one year the event will take place at the Orthodox Academy of Crete, with a school (April 1-5) and a congress (April 6-11) . The school will feature  an opening round table on the topic "Why study logic?", 30 tutorials, and a poster session, The congress will include 20 workshops, the World Logic Prizes Contest and a Secret Speaker.

The International Research Conference is a federated organization dedicated to bringing together a significant number of diverse scholarly events for presentation within the conference program. Events will run over a span of time during the conference depending on the number and length of the presentations. With its high quality, it provides an exceptional value for students, academics and industry researchers.

ICFCA 2021:15 aims to bring together leading academic scientists, researchers and research scholars to exchange and share their experiences and research results on all aspects of Formal Concept Analysis. It also provides a premier interdisciplinary platform for researchers, practitioners and educators to present and discuss the most recent innovations, trends, and concerns as well as practical challenges encountered and solutions adopted in the fields of Formal Concept Analysis.

[Dutch only]

Artificiële intelligentie moet ons leven verrijken, maar er niet mee aan de haal gaan. Het moet zich houden aan door mensen gehanteerde logica en principes voor rationaliteit, moraliteit en consistentie. Kortom, wij willen machinaal handelen kunnen begrijpen en sturen. Mens en machine moeten elkaar in voldoende mate verstaan om op de gewenste manier met elkaar om te gaan.

Vier sprekers (Catholijn Jonker, Jan Broersen, Rineke Verbrugge en Bart Jacobs) leggen uit welke rol logica, in combinatie met probabilistisch denken, speelt in het onderzoek naar de vervulling van deze wensen.

The ERC-Starting Grant Truth and Semantics (TRUST 803684) at the University of Bristol is organizing a one-day online workshop on the application of formal theories of truth to expressively rich languages, e.g., languages with generalized quantifiers, conditionals, modalities etc.

Confirmed Speakers: Catrin Campbell-Moore (Bristol), Hartry Field (NYU), Michael Glanzberg (Rutgers), Lorenzo Rossi (MCMP), Johannes Stern (Bristol).

AAMAS is the largest and most influential conference in the area of agents and multiagent systems, bringing together researchers and practitioners in all areas of agent technology and providing and internationally renowned high-profile forum for publishing and finding out about the latest developments in the field

Logics and strategic reasoning play a central role in multi-agent systems. Logics can be used, for instance, to express the agents' abilities, knowledge, and objectives. Strategic reasoning refers to algorithmic methods that allow for developing good behavior for the agents of the system. At the intersection, we find logics that can express existence of strategies or equilibria, and can be used to reason about them.

The LAMAS&SR workshop merges two international workshops: LAMAS, which focuses on all kinds of logical aspects of multi-agent systems from the perspectives of artificial intelligence, computer science, and game theory, and SR, devoted to all aspects of strategic reasoning in formal methods and artificial intelligence. Over the years the communities and research themes of both workshops got closer and closer. LAMAS&SR unifies LAMAS and SR under the same flag, formally joining the two communities in order to expose each of them to a wider range of work relevant to their research.

LAMAS&SR 2021 will be held with AAMAS 2021 Online.

Reasoning is at the very heart of logic, constituting its subject matter. In the last few decades, there has been considerable progress both in the purely logical analysis of reasoning and in applied logical investigations of various concrete subject domains, such as philosophical and scientific discourse, logic programming and everyday communication. Along with further elaboration of standard techniques a range of other approaches and semantic modeling of logical systems are being developed. Moreover, there is a powerful tradition of analyzing and evaluating reasoning patterns by means of informal logic and argumentation theory. The aim of the conference is to bring together scholars working in various areas of proof-theoretic, semantic, argumentative and informal logic analysis.

Invited Speakers: Hans van Ditmarsch (French National Centre for Scientific Research, France), Valentin Goranko (Stockholm University, Sweden), Dale Hample (University of Maryland, USA) and Hitoshi Omori (Ruhr-University Bochum, Germany).

Due to the continuing coronavirus pandemic, the event in May 2021 has been suspended, but the organizers hope to hold the conference in Kyiv as soon as circumstances permit, as well as hold the regular conference in May 2022.

The Tsinghua-Uva Joint Research Center in Logic organises a series of on-line lectures to commemorate that Wittgenstein's Tractatus first appeared in 1921. There will be two lectures per week between May 17 and June 16. Lectures will be given by:Kevin Cahill (University of Bergen), Eli Friedlander (Tel Aviv University), Dimitris Gakis (Catholic University Leuven), Hans-Johann Glock (Universität Zürich), Oskari Kuusela (University of East Anglia), Benjamin de Mesel (Catholic University of Leuven), Sami Pihlström (University of Helsinki), Göran Sundholm (Leiden University), Thomas Ricketts (University of Pittsburgh), Ben Ware (King’s College London).

The widespread use and increasing complexity of mission-critical and safety-critical systems at NASA and in the aerospace industry require advanced techniques that address these systems' specification, design, verification, validation, and certification requirements. The NASA Formal Methods Symposium (NFM) is a forum to foster collaboration between theoreticians and practitioners from NASA, academia, and industry. NFM's goals are to identify challenges and to provide solutions for achieving assurance for such critical systems.

New developments and emerging applications like autonomous software for Unmanned Aerial Systems (UAS), UAS Traffic Management (UTM), advanced separation assurance algorithms for aircraft, and the need for system-wide fault detection, diagnosis, and prognostics provide new challenges for system specification, development, and verification approaches. Similar challenges need to be addressed during development and deployment of on-board software for both spacecraft and ground systems. The focus of the symposium will be on formal techniques and other approaches for software assurance, including their theory, current capabilities and limitations, as well as their potential application to aerospace, robotics, and other NASA-relevant safety-critical systems during all stages of the software life-cycle.

The symposium will be held in an in-person/virtual hybrid format in Norfolk, VA, USA, possibly transitioning to fully virtual depending on the COVID-19 situation.

"Let's Talk Models!" is the kick-off workshop for the NWO VIDI project ENCODE: Explicating Norms of Collective Deliberation. As part of this project, we will organize workshops on a regular basis at the EIPE/ESPhil (Erasmus University of Rotterdam).

The theme of this edition is Formal Models of Deliberative Norms. In particular, a range of different models (logical, agent-based, game-theoretic and/or argument-based) of group deliberation and its norms will be presented and discussed. The ultimate aim is to understand how these models shed light on trade-offs and tensions among such norms, and on different recipes for checking and monitoring their satisfaction.

The conference takes place online via Zoom. Confirmed speakers are Hun Chung (Waseda University), Erica Yu (Erasmus University of Rotterdam), Olivier Roy (University of Bayreuth) and Soroush Rafiee Rad (University of Bayreuth & University of Amsterdam), and Nina Gierasimczuk (Danish Technical University). The full programme, incl. titles and abstracts of the talks can be found at https://www.dropbox.com/s/ua61j4fg477izrc/Kickoff%20ENCODE%20programme%20and%20abstracts.docx?dl=0.

The ability to think about non-actual possibilities is crucial for rational decision and action. When deciding what to do in situations of uncertainty or risk, we use our powers of imagination and conception to surveil the ways the world might be for all we know, and ponder the possible consequences of our actions. What is the logic of conceivability? Do thinking and imagining exhibit sufficient structure so to be amenable to precise modeling? Under what conditions does an imaginative episode establish a non-actual scenario as a real possibility? What are the special features of thought, talk and knowledge about mere possibility and conditionality? The aim of this conference is to facilitate the conversation on these questions by bringing together both senior and rising young researchers from around the world.

The aim of the COMSOC workshop series is to bring together different communities: computer scientists interested in computational issues in social choice; people working in artificial intelligence and multiagent systems who are using ideas from social choice to organise societies of artificial software agents; logicians interested in the logic-based specification and analysis of social procedures; and last but not least people coming from social choice theory itself.

BLAST is a conference series focusing on Boolean Algebras, Lattices, Algebraic Logic, Universal Algebra, Set Theory, Set-theoretic Topology, and Point-free Topology. The series circulates between different universities. The central BLAST web page, with links to past meetings, can be found here: http://math.colorado.edu/blast/

This year's installment of BLAST will take place at New Mexico State University. The scientific program will include invited lectures, tutorial lectures, two special sessions, and contributed talks. Due to the current pandemic, the conference will be entirely online.

From 14-24 June 2021 an impressive cast of international lecturers, from a wide range of disciplines, will try to unravel our capacity for music. Students will, next to attending lectures, work groups and online social events, work in groups with a designated tutor on a research project, within the broad topic of musicality, which they will present towards the end of the Summer School. Organized by Prof. Henkjan Honing and the Music Cognition Group.

After the successful completion of NALOMA'20 (NAtural LOgic Meets MAchine Learning), NALOMA'21 seeks to continue the series and attract exciting contributions.  NALOMA'21 is set out to address two main issues of the NLI community. First, the approaches and systems currently used to address NLI are too one-dimensional: they are either purely DL or purely symbolic but do not attempt to combine the two worlds. A second issue concerns datasets: existing NLI datasets are either complex enough but too small to be used for proper learning, or large enough but too easy to be claimed to represent human inference. The workshop aims to bridge the gap between ML/DL and symbolic/logic-based approaches to NLI, and it is perhaps the only workshop organized to do so. It will take place from June 14-June 18, 2021, during the International Conference on Computational Semantics (IWCS 2021) organized by the University of Groningen but taking place fully online due to the pandemic.

The demand for more sophisticated natural human-computer and human-robot interactions is rapidly increasing as users become more accustomed to conversation-like interactions with AI and NLP systems. Such interactions require not only the robust recognition and generation of expressions through multiple modalities (language, gesture, vision, action, etc.), but also the encoding of situated meaning.

This workshop intends to bring together researchers who aim to capture elements of multimodal interaction such as language, gesture, gaze, and facial expression with formal semantic representations. We provide a space for both theoretical and practical discussion of how linguistic co-modalities support, inform, and align with 'meaning' found in the linguistic signal alone. MMSR 2021 is co-located with IWCS 2021.

Semantic Spaces at the Intersection of NLP, Physics, and Cognitive Science (SemSpace2021) is the latest edition of a series of workshops that brings together research at the intersection of NLP, Physics, and Cognitive Science. Using the common ground of vector spaces, the workshop offers researchers in these areas an appropriate forum for presenting their uniquely motivated work and ideas. The interplay between the three disciplines will foster theoretically motivated approaches to understanding how meanings of words interact with each other in sentences and discourse via grammatical types, how they are determined by input from the world, and how word and sentence meanings interact logically.

This year we are excited to be (virtually) co-located with IWCS.

The TYPES meetings are a forum to present new and on-going work in all aspects of type theory and its applications, especially in formalised and computer assisted reasoning and computer programming.

This year's TYPES will be held virtually (online), possibly in combination with a physical meeting in Leiden in the Netherlands if the political situation permits that. TYPES 2021 will not only consist of presentations, but also a setup of working groups that get together throughout the week. The hope is that we can retain at least some of the exchange and chatter that is the heart of the TYPES conference series.

The Logical Perspectives conference series aims at bringing together distinguished logicians in order to present their perspectives on the future of the field, to discuss related open problems, and to foster new collaborations. The topics include, but are not limited to:
 - logical methods in mathematics;
 - logical methods in philosophy;
 - logical methods in computer science.

The Logical Perspectives summer school and workshop series aims at giving advanced introductions into various branches of logic, and providing researchers - including early career scientists - an opportunity to present their work. In particular, the Logical Perspectives 2020 Summer School and Workshop (LP 2020 SW) will be concerned with computational proof theory, broadly understood. It will take place in Moscow on June 15-19, 2020, following LP 2020. The programme of LP 2020 SW will comprise three mini-courses on different aspects of computational proof theory, and also a number of contributed talks.

In view of the developing situation with COVID-19 in Russia,
Logical Perspectives 2020 has moved to June 2021.

The LMP Graduate Student Conference will bring together philosophers of logic, mathematics, and physics for two days of presentations and discussions with some of the leaders in these fields. We are pleased to announce our keynote speaker this year is James Owen Weatherall from the University of California, Irvine.

The mission of the TARK conferences is to bring together researchers from a wide variety of fields, including Computer Science, Artificial Intelligence, Game Theory, Decision Theory, Philosophy, Logic, Linguistics, and Cognitive Science, in order to further our understanding of interdisciplinary issues involving reasoning about rationality and knowledge. Previous conferences have been held bi-annually around the world. Topics of interest: include, but are not limited to, semantic models for knowledge, belief, awareness and uncertainty, bounded rationality and resource-bounded reasoning, commonsense epistemic reasoning, epistemic logic, epistemic game theory, knowledge and action, applications of reasoning about knowledge and other mental states, belief revision, and foundations of multi-agent systems.

The ABC Networking Event provides you with the opportunity to discover all research treasures that ABC holds, and connect with other ABC researchers. All researchers (PhDs, post-docs,  assistant/associate/full professors) are invited to attend and actively participate.

The Networking Event will consist of:

• ABC Pitch talks: Flash talks that are all about getting to know each other, to foster fresh collaborations, and, possibly, to team-up for grant proposals. In small groups you present your research and/or listen to and discuss all the great research ABC has to offer.
• Networking session: in an informal atmosphere, the discussions continue in break-out rooms. These are small gatherings focused on a certain topic or just to get to know each other, it’s up to you!

CSR is an annual international conference held in Russia that is designed to cover a broad range of topics in Theoretical Computer Science.

Topics include, but are not limited to: (i) algorithms and data structures (ii) computational complexity, including hardness of approximation and parameterized complexity (iii) randomness in computing, approximation algorithms, fixed-parameter algorithms (iv) combinatorial optimization, constraint satisfaction, operations research (v) computational geometry (vi) string algorithms (vii) formal languages and automata, including applications to computational linguistics (viii) codes and cryptography (ix) combinatorics in computer science (x) computational biology (xi) applications of logic to computer science, proof complexity (xii) database theory (xiii) distributed computing (xiv) fundamentals of machine learning, including learning theory, grammatical inference and neural computing (xv) computational social choice (xvi) quantum computing and quantum cryptography (xvii) theoretical aspects of big data.

Opening lecture: Tim Roughgarden (Columbia University, USA).

Formal Concept Analysis emerged in the 1980's from attempts to restructure lattice theory in order to promote better communication between lattice theorists and potential users of lattice theory. Since its early years, Formal Concept Analysis has developed into a research field in its own right with a thriving theoretical community and a rapidly expanding range of applications in information and knowledge processing including visualization, data analysis (mining) and knowledge management and discovery.

The ICFCA conference series aims at bringing together researchers and practitioners working on theoretical or applied aspects of Formal Concept Analysis within major related areas such as Mathematics and Computer and Information Sciences and their diverse applications to fields like Software Engineering, Linguistics, Life and Social Sciences, etc.

The meeting will be held as a Virtual Conference, through Zoom provided by Chapman University.

The EPICENTER, the research center on Epistemic Game Theory at Maastricht University, offers this two-week intensive course as an introduction to the blooming field of Epistemic Game Theory. This field takes a new, fresh approach to game theory, and studies how people reason in game theoretic situations before they eventually make a choice. More precisely, it explores how we reason about the minds of others before we make a choice. Hence, the reasoning of people like you and me is at the center stage of epistemic game theory.

Due to the Corona-outbreak, the edition of 2020 had to be cancelled. The next edition will be in 2021.

CADE is the major international forum for presenting research on all aspects of automated deduction. High-quality submissions on the general topic of automated deduction, including logical foundations, theory and principles, applications in and beyond STEM, implementations, and the use/contribution of automated deduction in AI, are solicited. CADE-28 aims to present research that reflects the broad range of interesting and relevant topics in automated deduction.

CADE will carefully monitor the development of the COVID-19 pandemic, and take guidance from from the health authorities, to determine whether CADE-28 will be physical or online.

ICALP is the main conference and annual meeting of the European Association for Theoretical Computer Science (EATCS). As usual, ICALP will be preceded by a series of workshops, which will take place on 12 July 2021.

We are closely monitoring the development of the COVID-19 pandemic. If it is not viable to hold ICALP 2021 as a physical conference, we will run it virtually on the same dates. We will decide in January 2021 at the latest.

FSCD is a series of annual conferences started in 2016 in Porto, merging and replacing the RTA (Rewriting Techniques and Applications) andTLCA (Typed Lambda Calculi and Applications) conferences. Building on the RTA and TLCA communities, FSCD updates and modernizes the RTA and TLCA core topics and broadens their scope to closely related areas in logics, models of computation (e.g. quantum computing, probabilistic computing, homotopy type theory), semantics and verification in new challenging areas (e.g. blockchain protocols or deep learning algorithms).

FSCD 2021 will be the sixth edition of the International Conference on Formal Structures for Computation and Deduction. Due to the Covid 19 pandemic situation, the 2021 edition of FSCD and its satellite workshops will be held online.

ITRS workshops have been held every two years (with the exception of 2020). The ITRS 2021 workshop aims to bring together researchers working on both the theory and practical applications of systems based on intersection types and related approaches. Invited Speaker: Jeremy Siek (Indiana University Bloomington). ITRS 2021 is affiliated with FSCD.

Logic is not merely the study of different forms of reasoning, but also a powerful tool for representing and analyzing diverse phenomena. This course, at the summer school of the Vrije Universiteit Amsterdam, provides an introduction to logic and its application to a variety of fields, from computer science to linguistics and the social sciences. Throughout the course, we will encourage students to think about how they can apply logic to other disciplines they are interested in and discuss their ideas with lecturers and peers based on the information in the tutorials.

 The Munich Center for Mathematical Philosophy is organising the seventh edition of the Summer School on Mathematical Philosophy for Female Students, and invites applications until 29th March 2020. The summer school is open to women with a keen interest in mathematical philosophy. Applicants should be students of philosophy (or philosophically minded logicians or scientists) at an advanced undergraduate level, in a master program, or at an early PhD level.

This year, the Summer School will have the following lecture streams:
- "Suspension of Belief. Its Nature, Rationality and Logic.”, led by Alexandra Zinke (University of Tübingen)
- "Emergence and Reduction in Science", led by Patricia Palacios (University of Salzburg/MCMP)

Because of the current situation the summer school for 2020 is cancelled, but postponed into 2021!

Unification is concerned with the problem of identifying given (first- or higher-order) terms, either syntactically or modulo a theory. It is a fundamental technique that is employed in various areas of Computer Science and Mathematics. In particular, unification algorithms are key components in completion of term rewriting systems, resolution-based theorem proving, and logic programming. But unification is, for example, also investigated in the context of natural language processing, program analysis, types, modal logics, and in knowledge representation.

UNIF 2021 is the 35th in a series of annual workshops on unification and related topics. Just as it predecessors', the purpose of UNIF 2021 is to bring together researchers interested in unification theory and its applications, as well as closely related topics, such as matching (i.e., one-sided unification), anti-unification (i.e., the dual problem to unification), disunification (i.e., solving equations and inequations) and the admissibility problem (which generalizes unification in modal logics). It will provide a forum for presenting recent (even unfinished) work, and discuss new ideas and trends in this and related fields. UNIF 2021 is associated with FSCD 2021 and will be a purely virtual event.

The CIAA conferences concern research on all aspects of implementation and application of automata and related structures, including theoretical aspects. Automata theory is the foundation of computer science. Its applications have spread to almost all areas of computer science and many other disciplines. The purpose of these conferences is to bring together members of the academic, research and industrial community who have an interest in implementation and application of automata to demonstrate and analyze their work and to explain the problems they have been solving.

Note: Remote attendance will be possible, regardless of whether or not there will be a physical meeting.

The biennial DEON conferences are designed to promote interdisciplinary cooperation amongst scholars interested in linking the formal-logical study of normative concepts, normative language and normative systems with computer science, artificial intelligence, linguistics, philosophy, organization theory and law. In addition to these general themes, DEON 2020/21 will encourage a special focus on the topic 'Norms in Social Perspective'.

Keynote speakers: Marcia Baron (Indiana University, Bloomington), Emiliano Lorini (IRIT-CNRS, Toulouse University, France), Shyam Nair (Arizona State University, Tempe), and Sonja Smets (ILLC, University of Amsterdam).

We hope the global and local situation will allow us to hold the conference in person. If that will not be the case, we are prepared to hold the conference online, partially or totally. Contributors will be informed in advance.

Under the auspices of FoLLI the European Summer School in Logic, Language, and Information (ESSLLI) is organized every year in a different European country. It takes place over two weeks in the European Summer, hosts approximately 50 different courses at both the introductory and advanced levels, attracting around 400 participants each year from all the world.

The main focus of the program of the summer schools is the interface between linguistics, logic and computation, with special emphasis in human linguistic and cognitive ability. Courses, both introductory and advanced, cover a wide variety of topics within the combined areas of interest: Logic and Computation, Computation and Language, and Language and Logic. Workshops are also organized, providing opportunities for in-depth discussion of issues at the forefront of research, as well as a series of invited lectures.

The circumstances around the coronavirus (COVID-19) pandemic forced the organizers to postpone the 32nd edition of ESSLLI, planned for 2020 in Utrecht as ESSLLI-2020, to 26 july-13 august 2021, as well as hold it online. In view of the online format, the program is spread over three weeks so as to facilitate attendance.

The Conference on Uncertainty in Artificial Intelligence (UAI) is one of the premier international conferences on research related to learning and reasoning in the presence of uncertainty. UAI 2021 will be held fully online from 27 to 30 July 2021.

Spatial Cognition is concerned with the acquisition, development, representation, organization, and use of knowledge about spatial objects in real, virtual or hybrid environments and processed by human or artificial agents. Spatial Cognition includes research from different fields insofar as they are concerned with cognitive agents and space. Research issues in the field range from the investigation of human spatial cognition to mobile robot navigation. SC 2020 will bring together researchers working on spatial cognition from all of these perspectives.

The conference is single-track, and the final program will be the result of a selective review process. The program will include oral and poster presentations of refereed papers, and keynote talks by Sara I. Fabrikant, Steve Franconeri and Laure Rondi-Reig.

The initial conference was scheduled August 2020; this is the postponed version of it; the organizers are carefully observing the circumstances and will be hosting a virtual or a hybrid conference (with some talks in physical co-presence and some – virtually).

The field of natural language semantics has undergone what some refer to as an ‘experimental turn’ and is arguably currently undergoing a ‘computational turn’. By expanding the toolbox available to the semanticist, these two turns have the effect of expanding the phenomena that can be explained and the varieties of semantic explanation that can be offered.

For example, experimental methods can help distinguish between alternative explanations of semantic effects, e.g. whether to classify controversial phenomena as implicatures or presuppositions. Similarly, computational models of semantics can generate fine-grained and non-categorical predictions that can fruitfully be tested experimentally. And both kinds of methods can be used to ask questions about the emergence of semantic structures in language, including which factors influence their distribution and typology.

Given this wider toolbox and purview, we aim to gather a workshop to showcase exciting new work that develops new semantic explanations using experimental and computational methods, as well as to invite broader reflection on the methodology of semantics now and in its future.

Recent work in implicature has seen a great deal of activity within two lines of research: the rational choice approach associated with game-theoretic pragmatics and the Bayesian Rational Speech Act framework, and the exhaustification-based approach. While these frameworks have generally been thought to be in theoretical tension, there are also underexplored ways to combine them, with the potential to benefit both approaches. The workshop will explore explicit comparisons between the two frameworks as well as efforts to combine them, with the hope of producing a more unified theory of implicature and a more general understanding of the data that such a theory must account for.

The Algorithms and Data Structures Symposium, WADS, which alternates with the Scandinavian Symposium and Workshops on Algorithm Theory, SWAT, is intended as a forum for researchers in the area of design and analysis of algorithms and data structures.

WADS 2021 will most likely be fully online. It may have an in-person component (depending  on the covid-19 situation), which will be held at Dalhousie University, Halifax, Nova Scotia, Canada. CCCG 2021, the 33rd Canadian Conference on Computational Geometry, is planned for August 10-12 at the same location.

The goal of this workshop is to bring together people interested in structured representations of semantic information, especially from a computational perspective. In recent years, there has been a growing body of research which aims to integrate structured entities into formal semantic accounts. Important developments in this direction are the introduction of rich type systems and the use of frame-based representations, among others. The workshop is open to both foundational issues of structured semantic representations and applications to specific linguistic phenomena.

A first edition of the workshop took place in Gothenburg as part of IWCS 2019.

DLT is International Conference Series under the auspices of the European Association for Theoretical Computer Science (EATCS). The purpose of this conference is to bring together members of the academic, research, and industrial community who have an interest in formal languages, automata theory, and related areas.

We will monitor the global travel situation and consider the conditions the conference will be held.

Sometimes particular mathematical structures serve scientists as heuristic devices in their own right by giving indications of structural similarities between otherwise unrelated physical systems. And in philosophical discourse, it is often not singular mathematical formulas, but the entire structure of mathematics that is used as an argumentative point of reference. The goal of this conference is to investigate the role of mathematics as a heuristic device for analogical reasoning in science and philosophy.

The conference has been postponed to 2021 due to the COVID-19 epidemic.

This conference aims at bringing together researchers from across disciplines concerned with the acquisition, curation and use of language data in the context of data science and knowledge-based applications. This builds upon the success of the inaugural event held in Galway, Ireland in 2017 and the second LDK in Leipzig, Germany in 2019.

In order to allow more people to attend the Conference physically, and due to the current state in the COVID-19 pandemic in Europe, we decided to postpone LDK 2021 to early September. The conference will allow remote presentations by participants who cannot attend the conference in person owing to COVID-19 travelling restrictions, but we do think that physical encounter and gossip leads to better research.

The Colloquium Logicum is organized every two years by the "Deutsche Vereinigung fuer Mathematische Logik und fuer Grundlagenforschung der Exakten Wissenschaften" (DVMLG).The conference will cover the whole range of mathematical logic and the foundations of the exact sciences. In addition to all fields of mathematical logic, this includes the philosophy of the exact sciences, logic in philosophy, and logic in computer science and artificial intelligence. In addition to the keynote talks, there will be a "PhD Colloquium" with invited presentations of excellent recent PhD graduates.

Keynote Speakers: Laurent Bienvenu (Bordeaux), Catrin Campbell-Moore (Bristol), Wesley Holliday (Berkeley), Christian Ikenmeyer (Liverpool), Angeliki Koutsoukou-Argyraki (Cambridge), Alison Pease (Dundee) and Margaret Thomas (West Lafayette).

Postponed (due to pandemic) to September 2021.

There will be a section on Logic and Philosophy of Mathematics at the XXVth Congress of the German Society for Philosophy (DGPhil), "The True, the Good, and the Beautiful".

Unfortunately, due to the current Covid-19 pandemic it is impossible to hold our congress as planned (6th – 9th September 2020). It is not yet clear whether it would even be legally possible to hold it this year. However, it is clear that it would require very severe restrictions, so that essential goals of the congress could not be achieved. The congress is therefore postponed by one year.

This workshop on Controlled Natural Language (CNL) has a broad scope and embraces all approaches that are based on natural language and apply restrictions on vocabulary, grammar, and/or semantics. This includes (but is certainly not limited to) approaches that have been called simplified language, plain language, formalized language, processable language, fragments of language, phraseologies, conceptual authoring, language generation, and guided natural language interfaces.

Some CNLs are designed to improve communication among humans, especially for non-native speakers of the respective natural language. In other cases, the restrictions on the language are supposed to make it easier for computers to analyze such texts in order to improve computer-aided, semi-automatic, or automatic translations into other languages. A third group of CNL has the goal to enable reliable automated reasoning and formal knowledge representation from seemingly natural texts. All these types of CNL are covered by this workshop.

Due to Covid-19, the workshop is postponed to 2021!

The aim of  the autumn school "Proof and Computation" is to bring together young researchers in the field of Foundations of Mathematics, Computer Science and Philosophy. Scope: Predicative Foundations, Constructive Mathematics and Type Theory, Computation in Higher Types, and  Extraction of Programs from Proofs. There will be an opportunity to form ad-hoc groups working on specific projects, but also to discuss in more general terms the vision of constructing correct programs from proofs.

Unfortunately because of the present situation we had to cancel the event. More precisely, it will be shifted to September 12-18, 2021.

This is one of the main events of the Tbilisi Autumn of Logic, a series of conferences and summer schools taking place in Tbilisi promoting research in pure and applied logic at an international level.

The LATD conference series started as an official meeting of the working group on Mathematical Fuzzy Logic and has evolved into a wider meeting in algebraic logic and related areas. Its main goal is to foster collaboration between researchers in these areas, and to promote communication and cooperation with members of neighbouring fields.

The conference will be preceded by the Sixteenth International Tbilisi Summer School in Logic and Language devoted to courses on core topics of LATD 2020.

We regret to announce that due to the coronavirus pandemic LATD has been postponed to September 2021.

LATA is a conference series on theoretical computer science and its applications. LATA 2020 & 2021 will consist of invited talks and peer-reviewed contributions, and reserve significant room for young scholars at the beginning of their career. It will aim at attracting contributions from classical theory fields as well as application areas.

LATA 2020 & 2021 will merge the scheduled program for LATA 2020, which could not take place because of the Covid-19 crisis, with a new series of papers submitted on this occasion.

Keynote speakers: Eric Allender (Rutgers University),  Laure Daviaud (City, University of London), Christoph Haase (University College London), Artur Jeż (University of Wrocław), Jean-Éric Pin (CNRS), and Thomas Place (University of Bordeaux).

The Conference - devoted to non-classical logics - was initially held in Łódź in September 2008 and 2009. The conference serves as a forum to effectively exchange novel results and to survey works in widely understood non-classical logics and their applications.This year's tenth edition of the Conference will be an occasion to celebrate the 50th anniversary of the logic journal Bulletin of the Section of Logic, established in 1971.

During this year's edition of the conference there will be a special session devoted to formal ontology, broadly conceived.

Due to the current situation concerning COVID-19 and very uncertain predictions about what will happen in the autumn, after several consultations the organizers of the conference decided to postpone it until the year 2021.

Diagrams 2021 is the twelth conference in the series that started in 2000. The multidisciplinary nature of Diagrams means it encompasses: architecture, art, artificial intelligence, biology, cartography, cognitive science, computer science, education, graphic design, history of science, human-computer interaction, linguistics, logic, mathematics, philosophy, psychology, and software modelling. The conference attracts a large number of researchers from these interrelated fields, positioning Diagrams as the major international event in the area.

In addition to the Philosophy track, Diagrams 2021 will have two further tracks: Main, and Psychology and Education.

The thirteenth edition of the French Philosophy of Mathematics Workshop (FPMW) will be held from the 7th to the 9th of October 2021 at the Université Côte d'Azur in Nice - with the possibility of modifications linked to the ongoing health crisis.

Each year, the workshop program consists of five talks by invited speakers, and five contributed talks,

This year, the invited speakers are: Hourya BENIS SINACEUR (CNRS, IHPST), Valeria GIARDINO (CNRS, Institut Jean-Nicod), Patrick POPESCU-PAMPU (Université de Lille, laboratoire Paul-Painlevé), Dominique PRADELLE (Sorbonne Université, Archives Husserl) and Dirk SCHLIMM (McGill University).

Knowledge Representation and Reasoning (KR) is a well-established and lively field of research. In KR a fundamental assumption is that an agent's knowledge is explicitly represented in a declarative form, suitable for processing by dedicated reasoning engines. This assumption, that much of what an agent deals with is knowledge-based, is common in many modern intelligent systems. Consequently, KR has contributed to the theory and practice of various areas in AI, including automated planning and natural language understanding, and to fields beyond AI, including databases, verification, software engineering, and robotics. In recent years, KR has contributed also to new and emerging fields, including the semantic web, computational biology, cyber security, and the development of software agents.

The KR conference series is the leading forum for timely in-depth presentation of progress in the theory and principles underlying the representation and computational management of knowledge.

The Panhellenic Logic Symposium is a biennial scientific event that was established in 1997. It aims to promote interaction and cross-fertilization among different areas of logic. Originally conceived as a way of bringing together the many logicians of Hellenic descent throughout the world, the PLS has evolved into an international forum for the communication of state-of-the-art advances in logic. The symposium is open to researchers worldwide who work in logic broadly conceived.

PLS13 will have Special Sessions on Computer Science and Philosophical Logic, as well as Tutorials, Invited and Contributed Talks, a Poster Session and a Mentoring Session.

The meeting is postponed to July 2022, due to the uncertainties related to the pandemic. Exact dates will be decided at a later stage.