CiE 2019 is the 15th conference organized by CiE (Computability in Europe), a European association of mathematicians, logicians, computer scientists, philosophers, physicists and others interested in new developments in computability and their underlying significance for the real world.

The CiE conferences serve as an interdisciplinary forum for research in all aspects of computability, foundations of computer science, logic, and theoretical computer science, as well as the interplay of these areas with practical issues in computer science and with other disciplines such as biology, mathematics, philosophy, or physics.

The Asian Logic Conference (ALC) is a major international event in mathematical logic. It features the latest scientific developments in the fields in mathematical logic and its applications, logic in computer science, and philosophical logic. The ALC series also aims to promote mathematical logic in the Asia-Pacific region and to bring logicians together both from within Asia and elsewhere to exchange information and ideas.

FroCoS is the main international event for research on the development of techniques and methods for the combination and integration of formal systems, their modularization and analysis. The first FroCoS symposium was held in Munich, Germany, in 1996. Initially held every two years, since 2004 it has been organized annually with alternate years forming part of IJCAR. If we also count the IJCAR editions, this year FroCoS celebrates its 20th edition.

FroCoS 2019 will be co-located with the 28th International Conference on Automated Reasoning with Analytic Tableaux and Related Methods (TABLEAUX 2019). The two conferences will provide a rich programme of workshops, tutorials, invited talks, paper presentations and system descriptions. Like its predecessors, FroCoS 2019 seeks to offer a common forum for research in the general area of combination, modularization, and integration of systems, with emphasis on logic-based methods and their practical use.

LCC meetings are aimed at the foundational interconnections between logic and computational complexity. LCC'19 will be collocated with ICALP 2019. The program will consist of invited lectures as well as contributed talks selected by the Program Committee.

TABLEAUX is the main international conference at which research on all aspects - theoretical foundations, implementation techniques, systems development and applications - of the mechanization of tableaux-based reasoning and related methods is presented. Tableau methods offer a convenient and flexible set of tools for automated reasoning in classical logic, extensions of classical logic, and a large number of non-classical logics. For many logics, tableau methods can be generated automatically. Areas of application include verification of software and computer systems, deductive databases, knowledge representation and its required inference engines, teaching, and system diagnosis.

TABLEAUX 2019 will be co-located with the 12th International Symposium on Frontiers of Combining Systems (FroCoS 2019). The conferences will provide a rich programme of workshops, tutorials, invited talks, paper presentations and system descriptions.

Linear Logic is not only a proof theoretical tool to analyse or control the use of resources in logic and computation. It is also a corpus of tools, approaches, and methodologies that, even if developed for studying Linear Logic syntax and semantics, have been applied in several other fields. The TLLA international workshop aims at bringing together researchers working on Linear Logic or applying it or its tools. The main goal is to present and discuss trends in the research on Linear Logic and its applications by means of tutorials, invited talks, open discussions, and contributed talks.

The two-day workshop is intended as a platform for recent work in logic and philosophy of mathematics in the UK. The workshop is hosted jointly by the Foundational Studies Bristol (FSB) research group as part of the Centre for Science and Philosophy of the University of Bristol and the ERC-Starting Grant `Truth and Semantic' (TRUST) directed by Johannes Stern. The first day will focus on topics related to the TRUST-project while the second day is thematically unrestricted.

The two-day workshop is intended as a platform for recent work in logic and philosophy of mathematics in the UK. The workshop is hosted jointly by the Foundational Studies Bristol (FSB) research group as part of the Centre for Science and Philosophy of the University of Bristol and the ERC-Starting Grant `Truth and Semantic' (TRUST) directed by Johannes Stern. The first day will focus on topics related to the TRUST-project while the second day is thematically unrestricted.

This symposium celebrates 50 years of NP-Completeness and the outstanding achievements of Stephen Cook and his remarkable influence on the field of computing.

The symposium begins Monday evening May 6, with a reception and a public lecture by Christos Papadimitriou. The scientific program continues Tuesday May 7 to Thursday May 9 and features an outstanding set of speakers, including a number of Turing Award and other award winners. On Thursday there will be a student round table lunch with Stephen Cook.

The Brazilian Logic Conferences (EBL) is a traditional event of the Brazilian Logic Society (SBL). It has been occurring since 1979. Congregating logicians of different fields and with different backgrounds -- from undergraduate students to senior researchers -- the meeting is an important moment for the Brazilian and South-American logical community to join together and discuss recent developments of the field. The areas of Logic covered spread over Foundations and Philosophy of Science, Analytic Philosophy, Mathematics, Computer Science, Informatics, Linguistics and Artificial Intelligence.

There will be a Logic School during the conference; speakers and subjects to be announced.

This symposium celebrates 50 years of NP-Completeness and the outstanding achievements of Stephen Cook and his remarkable influence on the field of computing.

The symposium begins Monday evening May 6, with a reception and a public lecture by Christos Papadimitriou. The scientific program continues Tuesday May 7 to Thursday May 9 and features an outstanding set of speakers, including a number of Turing Award and other award winners. On Thursday there will be a student round table lunch with Stephen Cook.

The Brazilian Logic Conferences (EBL) is a traditional event of the Brazilian Logic Society (SBL). It has been occurring since 1979. Congregating logicians of different fields and with different backgrounds -- from undergraduate students to senior researchers -- the meeting is an important moment for the Brazilian and South-American logical community to join together and discuss recent developments of the field. The areas of Logic covered spread over Foundations and Philosophy of Science, Analytic Philosophy, Mathematics, Computer Science, Informatics, Linguistics and Artificial Intelligence.

There will be a Logic School during the conference; speakers and subjects to be announced.

Since the last century, scholars have acknowledged the original and relevant contribution of medieval Arabic philosophers and thinkers to the development of medieval Western logic and, more generally, to the history of logic. The Workshop on History of Arabic Logic has two main aims: to make better known the richness and importance of Arabic logic, that is, logic developed and studied in Arabic-speaking lands from the 8th to the 15th centuries CE; and to provide a forum for interaction and discussion by scholars of Arabic logic.

Invited Speakers: Saloua Chatti (Tunis), Khaled El-Rouayheb (Harvard), Wilfrid Hodges (British Academy) and Riccardo Strobino (Tufts).

The 19th Trends in Logic international conference will be held in Moscow, Russia from October 2 to October 4, 2019. It is organized by the National Research University Higher School of Economics and the journal Studia Logica.

• Lev Beklemishev (Moscow, Russia)
• Johan van Benthem (Amsterdam, The Netherlands)
• Per Martin-Löf (Stokholm, Sweden)
• Graham Priest (New York, USA)

This symposium celebrates 50 years of NP-Completeness and the outstanding achievements of Stephen Cook and his remarkable influence on the field of computing.

The symposium begins Monday evening May 6, with a reception and a public lecture by Christos Papadimitriou. The scientific program continues Tuesday May 7 to Thursday May 9 and features an outstanding set of speakers, including a number of Turing Award and other award winners. On Thursday there will be a student round table lunch with Stephen Cook.

The Brazilian Logic Conferences (EBL) is a traditional event of the Brazilian Logic Society (SBL). It has been occurring since 1979. Congregating logicians of different fields and with different backgrounds -- from undergraduate students to senior researchers -- the meeting is an important moment for the Brazilian and South-American logical community to join together and discuss recent developments of the field. The areas of Logic covered spread over Foundations and Philosophy of Science, Analytic Philosophy, Mathematics, Computer Science, Informatics, Linguistics and Artificial Intelligence.

There will be a Logic School during the conference; speakers and subjects to be announced.

Since the last century, scholars have acknowledged the original and relevant contribution of medieval Arabic philosophers and thinkers to the development of medieval Western logic and, more generally, to the history of logic. The Workshop on History of Arabic Logic has two main aims: to make better known the richness and importance of Arabic logic, that is, logic developed and studied in Arabic-speaking lands from the 8th to the 15th centuries CE; and to provide a forum for interaction and discussion by scholars of Arabic logic.

Invited Speakers: Saloua Chatti (Tunis), Khaled El-Rouayheb (Harvard), Wilfrid Hodges (British Academy) and Riccardo Strobino (Tufts).

The European Conference on Logics in Artificial Intelligence (or Journées Européennes sur la Logique en Intelligence Artificielle - JELIA) began back in 1988, as a workshop, in response to the need for a European forum for the discussion of emerging work in this field. Since then, JELIA has been organised biennially. JELIA aims at bringing together researchers active in all aspects concerning the use of logics in AI to discuss current research, results, problems, and applications of both a theoretical and a practical nature.

This symposium celebrates 50 years of NP-Completeness and the outstanding achievements of Stephen Cook and his remarkable influence on the field of computing.

The symposium begins Monday evening May 6, with a reception and a public lecture by Christos Papadimitriou. The scientific program continues Tuesday May 7 to Thursday May 9 and features an outstanding set of speakers, including a number of Turing Award and other award winners. On Thursday there will be a student round table lunch with Stephen Cook.

The Brazilian Logic Conferences (EBL) is a traditional event of the Brazilian Logic Society (SBL). It has been occurring since 1979. Congregating logicians of different fields and with different backgrounds -- from undergraduate students to senior researchers -- the meeting is an important moment for the Brazilian and South-American logical community to join together and discuss recent developments of the field. The areas of Logic covered spread over Foundations and Philosophy of Science, Analytic Philosophy, Mathematics, Computer Science, Informatics, Linguistics and Artificial Intelligence.

There will be a Logic School during the conference; speakers and subjects to be announced.

The European Conference on Logics in Artificial Intelligence (or Journées Européennes sur la Logique en Intelligence Artificielle - JELIA) began back in 1988, as a workshop, in response to the need for a European forum for the discussion of emerging work in this field. Since then, JELIA has been organised biennially. JELIA aims at bringing together researchers active in all aspects concerning the use of logics in AI to discuss current research, results, problems, and applications of both a theoretical and a practical nature.

Many disciplines, from mathematics to metaphysics, employ non-causal explanations. But what is the logic (or the logics) of non-causal explanation? What are the pros and cons of different logical approaches? Is the linguistic expression of non-causal explanation specifically codified in some natural language? Can algorithms pick up non-causal explanations in textual databases? The workshop welcomes formal and informal contributions both from within specific disciplines employing non-causal explanations and from a more general perspective.

Keynote speakers: Hannes Leitgeb (Munich), Francesca Poggiolesi (Paris) and Erik Weber (Ghent).

The Brazilian Logic Conferences (EBL) is a traditional event of the Brazilian Logic Society (SBL). It has been occurring since 1979. Congregating logicians of different fields and with different backgrounds -- from undergraduate students to senior researchers -- the meeting is an important moment for the Brazilian and South-American logical community to join together and discuss recent developments of the field. The areas of Logic covered spread over Foundations and Philosophy of Science, Analytic Philosophy, Mathematics, Computer Science, Informatics, Linguistics and Artificial Intelligence.

There will be a Logic School during the conference; speakers and subjects to be announced.

The European Conference on Logics in Artificial Intelligence (or Journées Européennes sur la Logique en Intelligence Artificielle - JELIA) began back in 1988, as a workshop, in response to the need for a European forum for the discussion of emerging work in this field. Since then, JELIA has been organised biennially. JELIA aims at bringing together researchers active in all aspects concerning the use of logics in AI to discuss current research, results, problems, and applications of both a theoretical and a practical nature.

Many disciplines, from mathematics to metaphysics, employ non-causal explanations. But what is the logic (or the logics) of non-causal explanation? What are the pros and cons of different logical approaches? Is the linguistic expression of non-causal explanation specifically codified in some natural language? Can algorithms pick up non-causal explanations in textual databases? The workshop welcomes formal and informal contributions both from within specific disciplines employing non-causal explanations and from a more general perspective.

Keynote speakers: Hannes Leitgeb (Munich), Francesca Poggiolesi (Paris) and Erik Weber (Ghent).

The conference aims to bring together researchers from history, mathematics, philosophy (and more!) to discuss aspects of the practice of mathematics and its implications.

Current speakers include:

• Jeremy Avigad (Philosophy & Mathematics, Carnegie Mellon University)
• Yacin Hamami (Logic & Philosophy of Science, Vrije Universiteit Brussel)
• Jemma Lorenat (Mathematics, Pitzer College)
• Ali Raza Malik (Mathematics & Computer Science, Stanford University)
• Rebecca Morris (Philosophy, Stanford University)
• Reviel Netz (Classics, Stanford University)
• Wilfried Sieg (Philosophy, Carnegie Mellon University)
• James Walsh (Logic & Methodology of Science, University of California, Berkeley)
• Jared Warren (Philosophy, Stanford University)

The conference aims to bring together researchers from history, mathematics, philosophy (and more!) to discuss aspects of the practice of mathematics and its implications.

Current speakers include:

• Jeremy Avigad (Philosophy & Mathematics, Carnegie Mellon University)
• Yacin Hamami (Logic & Philosophy of Science, Vrije Universiteit Brussel)
• Jemma Lorenat (Mathematics, Pitzer College)
• Ali Raza Malik (Mathematics & Computer Science, Stanford University)
• Rebecca Morris (Philosophy, Stanford University)
• Reviel Netz (Classics, Stanford University)
• Wilfried Sieg (Philosophy, Carnegie Mellon University)
• James Walsh (Logic & Methodology of Science, University of California, Berkeley)
• Jared Warren (Philosophy, Stanford University)

On Saturday, 11 May 2019, Professor Joel David Hamkins, the Sir Peter Strawson Fellow at University College Oxford, is visiting Amsterdam to speak at the Wijsgerig Festival DRIFT on the topic of Het zijn en de dingen. We used this opportunity to arrange for a small informal workshop on mathematical logic and set theory during the day. Speakers are Robert Paßmann, Sam Adam-Day, and Joel Hamkins. Everyone is cordially invited.

KI 2019 is the 42nd edition of the German Conference on Artificial Intelligence organized in cooperation with the AI Chapter of the German Society for Informatics (GI-FBKI).

KI traditionally brings together academic and industrial researchers from all areas of AI, providing an ideal place for exchanging news and research results of intelligent system technology. While KI is primarily attended by researchers from Germany and neighboring countries, it warmly welcomes international participation.

The FilMat network promotes workshops and conferences open to Italian and international researchers in the philosophy of mathematics. To emphasise its attention to those at early stages of their careers, the network is glad to announce, in addition to its biennial main conferences, its second graduate conference. We expect to host up to 6/8 contributed talks by graduate and early career speakers of any nationality, selected by double-blind review.

Invited speakers: Salvatore Florio (University of Birmingham), Lavinia Picollo (UCL) and Jack Woods (University of Leeds).

The meeting takes place in Szklarska Poręba, in the lovely Sudetes Mountains on the Polish-Czech border. Our event is being held under the patronage of the Polish Association for Logic and Philosophy of Science.

Our invited speakers are:

• Krzysztof R. Apt, CWI, Amsterdam
• Roberto Giuntini, University of Cagliari
• Andreas Herzig, Université Paul Sabatier, Toulouse
• Emil Jeřábek, Czech Academy of Sciences, Prague

We encourage everyone who is interested in logic to participate in our event.

There is general realization that computational models of human reasoning can be improved by integration of heterogeneous resources of information and AI techniques, e.g., multidimensional diagrams, images, language, syntax, semantics, memory. While the event targets promotion of integrated computational approaches, we invite contributions from any individual area related to information, formal and natural languages, computation, reasoning.

Topics: Algorithmic randomness, Computability theory, Computability in analysis, Kolmogorov complexity, Computational complexity, Reverse mathematics and logic. The conference will be co-located with The Sixteenth Asian Logic Conference.

The meeting takes place in Szklarska Poręba, in the lovely Sudetes Mountains on the Polish-Czech border. Our event is being held under the patronage of the Polish Association for Logic and Philosophy of Science.

Our invited speakers are:

• Krzysztof R. Apt, CWI, Amsterdam
• Roberto Giuntini, University of Cagliari
• Andreas Herzig, Université Paul Sabatier, Toulouse
• Emil Jeřábek, Czech Academy of Sciences, Prague

We encourage everyone who is interested in logic to participate in our event.

In 1949, Kurt Gödel showed that there exist solutions to Einstein's equations of general relativity allowing for closed timelike curves. The existence of such curves would allow time travel into one's own past leading to all kind of causality paradoxes. Today there is an ongoing debate on how physical such solutions are and whether general relativity would prevent the formation of regions where causality violation is possible. Closely related are Gödel's philosophical ideas on the existence of time, a subject that he intensively discussed with Einstein in Princetown. 'In my view Kurt Gödel's papers represent an important contribution to general relativity, especially his analysis of the concept of time.' said Einstein.

The Kurt Goedel Society intends to celebrate the 70th anniversary of Gödel's seminal publication and the 100th anniversary of the decisive experimental verification of general relativity by organizing a conference at the University of Vienna, Austria. This event will bring together the prominent researchers from the fields of Physics, Mathematics, Philosophy and Artificial Intelligence. The conference will be enhanced with a special exhibition about life and work of Kurt Gödel with emphasis on Gödel's solution.

The JOWO workshops address a wide spectrum of topics related to ontology research, ranging from Cognitive Science to Knowledge Representation, Natural Language Processing, Artificial Intelligence, Logic, Philosophy, and Linguistics. JOWO is especially suitable for interdisciplinary and innovative formats.

The following workshops are being organized:

• 2nd International Workshop on Bad or Good Ontology (BOG)
• Cognition And OntologieS (CAOS IV)
• Contextual Representations of Events and Objects in Language (CREOL).
• Workshop on Data meets Applied Ontologies in Open Science and Innovation (DAO-SI)
• 10th International Workshop on Formal Ontologies meet Industry (FOMI)
• Workshop on Foundational Ontology (FOUST).
• Ontologies and Data in Life Sciences 2019 (ODLS 2019)
• The Shape of Things (SHAPES 5.0).
• Social, Legal and Economic Entities (SoLEE)
• Second Workshop on INteraction-based Knowledge Sharing (WINKS-2)
• 1st International Workshop on Ontologies for Digital Humanities and their Social Analysis (WODHSA)
• 4th International Workshop on Ontology Modularity, Contextuality, and Evolution (WOMoCoE 2019)

In addition, JOWO 2019 will host five tutorials:

• Data-driven ontology engineering with Relational Concept Analysis (DOnEReCA)
• Introduction to Foundational Ontologies (FOUNT)
• Semantic similarity and machine learning with ontologies.
• SNOMED CT Tutorial
• Top Level Ontologies (ISO/IEC 21838)

The Novembertagung on the History and Philosophy of Mathematics is an annual international conference aimed at PhD and postdoctoral students (young scholars) in the history and philosophy of mathematics.

Mathematical knowledge is commonly thought of as being essentially universal: its truths are eternal and incontrovertible, its propositions understandable and agreeable by all, independent of linguistic, cultural, ethnic or religious backgrounds. However, global knowledge, as mathematics seems to be, is always produced locally. As such, it hinges upon collectively shared ways of practicing, writing, and communicating mathematics. This year's Novembertagung invites participants to reflect on the theme 'Mathematical Cultures, Values, & Norms'. The invited speakers are June Barrow-Green (Open University) and Roy Wagner (ETH Zurich).

Understanding the ontological nature of social, legal and economic concepts and institutions is crucial for providing principled modelling in many important domains such as enterprise modelling, business processes, and social ontology. A significant number of fundamental concepts that are ubiquitous in economics, social, and legal sciences - such as value, risk, capability, good, service, exchange, transaction, competition, social norm, group, institution - have only recently been approached from a specifically ontological perspective. It is therefore important to offer a venue to gather the recent contributions to this topic.

This workshop is part of the Joint Ontology Workshops (JOWO 2019), and relates mainly to two previous events (SoLE-BD and Ontology of Economics 2018).  The goals of the workshop are:
- to collect approaches to deal with social, legal and economic entities in foundational and applied ontologies,
- discuss applications of these approaches to social, legal and economic entities in ontologies for biomedicine and business informatics, and
- serve as a meeting point for stakeholders from applied ontology and the respective domain disciplines.

The aim of the GandALF symposium is to bring together researchers from academia and industry which are actively working in the fields of Games, Automata, Logics, and Formal Verification. The symposium covers a large number of research subjects, ranging from theory to applications, and stimulate cross-fertilization.

The 2st workshop Formal Reasoning and Semantics will be held at the Faculty of Teacher Education, University of Zagreb. The workshop is organized within the research project Formal Reasoning and Semantics (FORMALS).

Invited speaker: Vivek Nigam (Paraiba, Brazil and Muenchen, Germany).

A conference, on the occasion of Chris Laskowski's 60th birthday will take place at The University of Maryland.

Invited Speakers: John Baldwin, Elisabeth Bouscaren, Gabriel Conant, Vincent Guingona, John Goodrick, Danul Gunatilleka, Bradd Hart, Julia Knight, Alexei Kolesnikov, Steffen Lempp, Maryanthe Malliaris, David Marker, David Pierce, Saharon Shelah, Charles Steinhorn, Caroline Terry and Douglas Ulrich.

Quantified Boolean formulas (QBF) are an extension of propositional logic which allows for explicit quantification over propositional variables. Many problems from application domains such as model checking, formal verification or synthesis can be encoded as a QBF in a natural way. Considerable progress has been made in QBF solving throughout the past years. However, in contrast to SAT, QBF is not yet widely applied to practical problems in academic or industrial settings. The goal of the International Workshop on Quantified Boolean Formulas and Beyond (QBF 2019) is to bring together researchers working on theoretical and practical aspects of QBF solving.

In addition to that, it addresses (potential) users of QBF in order to reflect on the state-of-the-art and to consolidate on immediate and long-term research challenges. The workshop also welcomes work on reasoning with quantifiers in related problems, such as dependency QBF (DQBF), quantified constraint satisfaction problems (QCSP), and satisfiability modulo theories (SMT) with quantifiers.

The meeting takes place in Szklarska Poręba, in the lovely Sudetes Mountains on the Polish-Czech border. Our event is being held under the patronage of the Polish Association for Logic and Philosophy of Science.

Our invited speakers are:

• Krzysztof R. Apt, CWI, Amsterdam
• Roberto Giuntini, University of Cagliari
• Andreas Herzig, Université Paul Sabatier, Toulouse
• Emil Jeřábek, Czech Academy of Sciences, Prague

We encourage everyone who is interested in logic to participate in our event.

The meeting takes place in Szklarska Poręba, in the lovely Sudetes Mountains on the Polish-Czech border. Our event is being held under the patronage of the Polish Association for Logic and Philosophy of Science.

Our invited speakers are:

• Krzysztof R. Apt, CWI, Amsterdam
• Roberto Giuntini, University of Cagliari
• Andreas Herzig, Université Paul Sabatier, Toulouse
• Emil Jeřábek, Czech Academy of Sciences, Prague

We encourage everyone who is interested in logic to participate in our event.

Vector embeddings of word meanings have become a mainstream tool in large scale natural language processing tools. The use of vectors to represent meanings in semantic spaces or feature spaces is also employed in cognitive science. Unrelated to natural language and cognitive science, vectors and vector spaces have been extensively used as models of physical theories and especially the theory of quantum mechanics.

Exploiting the common ground provided by vector spaces, the proposed workshop will bring together researchers working at the intersection of NLP, cognitive science, and physics, offering to them an appropriate forum for presenting their uniquely motivated work and ideas.

The meeting takes place in Szklarska Poręba, in the lovely Sudetes Mountains on the Polish-Czech border. Our event is being held under the patronage of the Polish Association for Logic and Philosophy of Science.

Our invited speakers are:

• Krzysztof R. Apt, CWI, Amsterdam
• Roberto Giuntini, University of Cagliari
• Andreas Herzig, Université Paul Sabatier, Toulouse
• Emil Jeřábek, Czech Academy of Sciences, Prague

We encourage everyone who is interested in logic to participate in our event.

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

Throughout the 20th century the sciences have approached more and more complex phenomena, in tune with the increased social relevance of scientific knowledge. The perceived need to address complexity head-on has led to a broader reaction against simplification and reductionism within the sciences. However, if simplicity, in its various outfits, has proven an unreliable guide, what should it be replaced with? Looking at the various strategies of addressing complexity in the sciences and the disciplines reflecting upon them, it appears that the notion is at least as variegated as simplicity.

The aim of the conference is to analyze, differentiate, and connect the various notions and practices of simplicity and complexity, in physics as well as in other sciences. We invite contributors from a spectrum of disciplines, scientists and scholars reflecting on their respective and neighboring research fields, as well as historians, philosophers, and sociologists of science investigating the epistemologies, practices, and discourses of fellow epistemic communities. The conference will thrive on intense discussion surpassing disciplinary boundaries.

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

Throughout the 20th century the sciences have approached more and more complex phenomena, in tune with the increased social relevance of scientific knowledge. The perceived need to address complexity head-on has led to a broader reaction against simplification and reductionism within the sciences. However, if simplicity, in its various outfits, has proven an unreliable guide, what should it be replaced with? Looking at the various strategies of addressing complexity in the sciences and the disciplines reflecting upon them, it appears that the notion is at least as variegated as simplicity.

The aim of the conference is to analyze, differentiate, and connect the various notions and practices of simplicity and complexity, in physics as well as in other sciences. We invite contributors from a spectrum of disciplines, scientists and scholars reflecting on their respective and neighboring research fields, as well as historians, philosophers, and sociologists of science investigating the epistemologies, practices, and discourses of fellow epistemic communities. The conference will thrive on intense discussion surpassing disciplinary boundaries.

IWCS is the bi-yearly meeting of SIGSEM, the ACL special interest group on semantics. The aim of the IWCS conference is to bring together researchers interested in any aspects of the computation, annotation, extraction, and representation of meaning in natural language, whether from a lexical or structural semantic perspective. IWCS embraces both symbolic and machine learning approaches to computational semantics, and everything in between.

The main conference will be run from 25-27 May 2019, preceded by workshops on 23-24 May. The areas of interest for the conference include all computational aspects of meaning of natural language within written, spoken, or multimodal communication.

There are at least three components to the dynamics of natural language: learning, communication, and evolution. The research project Social models of Semantics Learning. Acquisition and Evolution of Quantifier Meaning (funded by the NCN OPUS Scheme Grant of dr Nina Gierasimczuk) explores the possibilities of capturing them in a single comprehensive mathematical model, with a special focus on the semantics of quantifier expressions.

During the SoMMA Workshop, which marks the end of this three year endeavour, we want to explore further research avenues and connections between various experimental approaches to formal semantics. The presentations will touch upon social networks, coordination games, iterated learning, language evolution, semantic universals, neural networks, and many others. Everybody is welcome to attend!

StuTS is short for German Studentische Tagung Sprachwissenschaften which translates roughly to student conference for linguistics and it offers an interesting programme from linguistics and related disciplines, with expert keynotes, student presentations and workshops, tours and demos, and of course a social programme with the best that Cologne has in store for students. We are looking forward to welcoming you all in Cologne from 23 to 25 Mai, 2019.

The Alfred Renyi Institute of Mathematics, the Department of Logic, Institute of Philosophy, Eotvos University, and the Faculty of Science, Eotvos University are organizing a conference celebrating the 80th birthday of Prof. Michael Makkai. The main topics of the conference are logic, category theory, model theory and philosophy of mathematics. We also welcome any contribution whose topic is related to prof. Makkai's research interest.

Invited speakers: Jean-Pierre Marquis, Universite de Montreal, Philip Scott, University of Ottawa, Joseph Helfer, Stanford University.

The International Joint Conference on Rules and Reasoning (RuleML+RR) is the leading international joint conference in the field of rule-based reasoning. Stemming from the synergy between the well-known RuleML and RR events, one of the main goals of this conference is to build bridges between academia and industry.

RuleML+RR 2019 aims to bring together rigorous researchers and inventive practitioners, interested in the foundations and applications of rules and reasoning in academia, industry, engineering, business, finance, healthcare and other application areas. It provides a forum for stimulating cooperation and cross-fertilization between the many different communities focused on the research, development and applications of rule-based systems. RuleML+RR 2019 is part of BRAIN 2019, the Bolzano Rules and Artificial Intelligence Summit.

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

Throughout the 20th century the sciences have approached more and more complex phenomena, in tune with the increased social relevance of scientific knowledge. The perceived need to address complexity head-on has led to a broader reaction against simplification and reductionism within the sciences. However, if simplicity, in its various outfits, has proven an unreliable guide, what should it be replaced with? Looking at the various strategies of addressing complexity in the sciences and the disciplines reflecting upon them, it appears that the notion is at least as variegated as simplicity.

The aim of the conference is to analyze, differentiate, and connect the various notions and practices of simplicity and complexity, in physics as well as in other sciences. We invite contributors from a spectrum of disciplines, scientists and scholars reflecting on their respective and neighboring research fields, as well as historians, philosophers, and sociologists of science investigating the epistemologies, practices, and discourses of fellow epistemic communities. The conference will thrive on intense discussion surpassing disciplinary boundaries.

IWCS is the bi-yearly meeting of SIGSEM, the ACL special interest group on semantics. The aim of the IWCS conference is to bring together researchers interested in any aspects of the computation, annotation, extraction, and representation of meaning in natural language, whether from a lexical or structural semantic perspective. IWCS embraces both symbolic and machine learning approaches to computational semantics, and everything in between.

The main conference will be run from 25-27 May 2019, preceded by workshops on 23-24 May. The areas of interest for the conference include all computational aspects of meaning of natural language within written, spoken, or multimodal communication.

There are at least three components to the dynamics of natural language: learning, communication, and evolution. The research project Social models of Semantics Learning. Acquisition and Evolution of Quantifier Meaning (funded by the NCN OPUS Scheme Grant of dr Nina Gierasimczuk) explores the possibilities of capturing them in a single comprehensive mathematical model, with a special focus on the semantics of quantifier expressions.

During the SoMMA Workshop, which marks the end of this three year endeavour, we want to explore further research avenues and connections between various experimental approaches to formal semantics. The presentations will touch upon social networks, coordination games, iterated learning, language evolution, semantic universals, neural networks, and many others. Everybody is welcome to attend!

StuTS is short for German Studentische Tagung Sprachwissenschaften which translates roughly to student conference for linguistics and it offers an interesting programme from linguistics and related disciplines, with expert keynotes, student presentations and workshops, tours and demos, and of course a social programme with the best that Cologne has in store for students. We are looking forward to welcoming you all in Cologne from 23 to 25 Mai, 2019.

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 workshop affiliated with the 13th International Conference on Computational Semantics (IWCS 2019)

Formal tools coming from logic and category theory are important in both natural language semantics and in computational semantics. Moreover, work on these tools borrows heavily from all areas of theoretical computer science. In the other direction, applications having to do with natural language has inspired developments on the formal side. The workshop invites papers on both topics.

Invited speakers: Krasimir Angelov (Gothenburg), Rafaella Bernardi, (Trento).

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

IWCS is the bi-yearly meeting of SIGSEM, the ACL special interest group on semantics. The aim of the IWCS conference is to bring together researchers interested in any aspects of the computation, annotation, extraction, and representation of meaning in natural language, whether from a lexical or structural semantic perspective. IWCS embraces both symbolic and machine learning approaches to computational semantics, and everything in between.

The main conference will be run from 25-27 May 2019, preceded by workshops on 23-24 May. The areas of interest for the conference include all computational aspects of meaning of natural language within written, spoken, or multimodal communication.

StuTS is short for German Studentische Tagung Sprachwissenschaften which translates roughly to student conference for linguistics and it offers an interesting programme from linguistics and related disciplines, with expert keynotes, student presentations and workshops, tours and demos, and of course a social programme with the best that Cologne has in store for students. We are looking forward to welcoming you all in Cologne from 23 to 25 Mai, 2019.

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

IWCS is the bi-yearly meeting of SIGSEM, the ACL special interest group on semantics. The aim of the IWCS conference is to bring together researchers interested in any aspects of the computation, annotation, extraction, and representation of meaning in natural language, whether from a lexical or structural semantic perspective. IWCS embraces both symbolic and machine learning approaches to computational semantics, and everything in between.

The main conference will be run from 25-27 May 2019, preceded by workshops on 23-24 May. The areas of interest for the conference include all computational aspects of meaning of natural language within written, spoken, or multimodal communication.

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 programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

IWCS is the bi-yearly meeting of SIGSEM, the ACL special interest group on semantics. The aim of the IWCS conference is to bring together researchers interested in any aspects of the computation, annotation, extraction, and representation of meaning in natural language, whether from a lexical or structural semantic perspective. IWCS embraces both symbolic and machine learning approaches to computational semantics, and everything in between.

The main conference will be run from 25-27 May 2019, preceded by workshops on 23-24 May. The areas of interest for the conference include all computational aspects of meaning of natural language within written, spoken, or multimodal communication.

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

Confirmed speakers:
* Roy Sorensen (Washington University, St. Louis)
* Catarina Dutilh Novaes (Vrije Universiteit Amsterdam)
* Catrin Campbell-Moore (Bristol University)

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

Confirmed speakers:
* Roy Sorensen (Washington University, St. Louis)
* Catarina Dutilh Novaes (Vrije Universiteit Amsterdam)
* Catrin Campbell-Moore (Bristol University)

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

The philosophy department at the University of Bergen is pleased to invite applications for participation in an early-career masterclass on logical epistemology, with tutorials from both Roy Sorensen and Ole Hjortland. Participants will also have the opportunity to present their own work in the philosophy of logic with a 30-minute presentation, and receive feedback from experts in the field. Applicants should be doctoral candidates, or those within three years of obtaining their PhD.

Confirmed speakers:
* Roy Sorensen (Washington University, St. Louis): Topic TBA
* Ole Hjortland (University of Bergen): Logical Anti-Exceptionalism

The workshop brings together researchers working on the logic and the philosophy of type-free notions such as functions, classes, properties, and propositions.

Due to the logical paradoxes, the traditional approach arranges such entities in hierarchies: type-theory and traditional set theory are well-known examples. The resulting picture has the obvious drawback of leaving out many legitimate objects. For instance, many innocuous circular properties and propositions cannot be assigned a place in the hierarchical approach. Similarly, it is not possible to accommodate propositions expressing quantification over all levels in a hierarchy.

The aim of the workshop is to explore and compare different approaches to type-free notions that overcome such shortcomings. It will focus in particular on the formal frameworks employed to model them, and on their philosophical motivations and applications.

The standard view of narrative is inextricably bound up with the passage of time. Narrative scholars are convinced that time is an essential element in any narrative, and it has been thought equally essential, though treated in different ways, by philosophers of history. But exactly how to think about time in the narratives of science is not self-evident. And if we look at how scientists use time in narratives, we see a number of different ways in which it is taken into account and is deployed.

In this workshop, organised as a collaboration between the Narrative Science Project and The Royal Institution, the focus will be on the different temporalities in narratives as they occur in scientific discourses. The obvious loci for such explorations are what are generally referred to as the historical sciences, that is, those that seek to reconstruct the past on the basis of what can be observed in the present. However, time and its narrative expression are to be found in a wide variety of places, some of which will be explored by the speakers at the workshop. Throughout the workshop, the question of how essential time is to narrative will remain open for argument.

The purpose of the Semantics and Philosophy in Europe (SPE) colloquia is to provide a forum for presenting research in the interface between linguistic semantics and various areas of philosophy (philosophy of language, philosophy of mind/cognition, metaphysics etc.). This year's Semantics and Philosophy in Europe Colloquium features a general session as well as two special sessions (preceded by tutorials):
1 - Subjectivity: Theoretical and Experimental Perspectives
2 - Truthmaker Semantics and Situations

There will also be two invited lectures on the influence of the Lvov-Warsaw School on contemporary semantics and philosophy of language.

The 7th European Set Theory Conference will be held July 1 - 5, 2019 in Vienna, Austria.

The conference features the presentation of the Hausdorff Medal, an initiative of the European Set Theory Society. The currently confirmed invited speakers are: Jörg Brendle, Mirna Džamonja, Todd Eisworth, Moti Gitik, Alexander Kechris, Piotr Koszmider, Maryanthe Malliaris, Justin Moore, Dima Sinapova, Slawomir Solecki, Boaz Tsaban, Anush Tserunyan, Matteo Viale and Hugh Woodin. The organizing committee includes: Vera Fischer, Sy-David Friedman, Benjamin Miller.

The 12th Young Set Theory Workshop will be held June 26 - 29, 2019 in Vienna, Austria, as an "Advanced Class in Set Theory".

The workshop features tutorial lectures by leading experts in set theory, research talks, poster and discussion sessions. The tutorial speakers are: Jörg Brendle, Alexander Kechris, Justin Moore, Slawomir Solecki, Matteo Vieale and Hugh Woodin. The postdoctoral speakers are: Thomas Baumhauer, Filippo Calderoni, Spencer Unger and Zoltan Vidnyánszky.

This workshop aims to focus on the scope and limits of neutral constructivism. With Errett Bishop's seminal work Foundations of Constructive Analysis 1967, a neutral position in the foundations of constructive mathematics emerged. It avoided Brouwer's assumptions about choice-sequences and continuity, and it did not assume that every total function on the natural numbers is computable. Successful full-fledged formal logical foundations for neutral constructivism exists, among the most well-known are Aczel-Myhill set theory and Martin-Löf type theory. The study of neutral constructivism paves the way for further developments of interactive proof systems, which is of strategic importance for verification of software, and in particular, correctness-by-construction software.  Neutral constructive mathematics may also be studied for systems that make fewer ontological assumptions, which is important for reverse mathematics.

The purpose of the workshop is to bridge the gap between the cognitive sciences and research on ontologies and, thus, to create a venue for researchers interested in interdisciplinary aspects of knowledge representation. More specifically CAOS addresses the difficult question of how key cognitive phenomena and concepts (and the involved terminology) can be found across language, psychology and reasoning and how this can be formally and ontologically understood, analyzed and represented.

We aim to address to an interdisciplinary audience, by inviting scholars in philosophy, computer science, logic, conceptual modelling, knowledge representation, and cognitive science to contribute to the discussion.

This workshop is part of The Joint Ontology Workshops JOWO 2019.

Foundational ontologies are attempts to systematise those categories of thought or reality which are common to all or almost all subject-matters. Commonly considered examples of such categories include 'object', 'quality', 'function', 'role', 'process', 'event', 'time', and 'place'. Amongst existing foundational ontologies, there is both a substantial measure of agreement and some dramatic disagreements. There is currently no uniform consensus concerning how a foundational ontology should be organised, how far its 'reach' should be (e.g., is the distinction between physical and non-physical entities sufficiently fundamental to be included here?), and even what role it should play in relation to more specialised domain ontologies.

The purpose of this workshop is to provide a forum for researchers to present work on specific foundational ontologies as well as foundational ontologies in general and their relations to each other and to the wider ontological enterprise. The FOUST III workshop will be co-located with the Joint Ontology Workshops (JOWO 2019).

As ontologies are used in more domains and applications and as they grow in size, the consequences of bad ontology design become more critical. Bad ontologies may be inconsistent, have unwanted consequences, be ridden with anti-patterns, or simply be incomprehensible. In general, bad ontologies present design mistakes that make their use and maintenance problematic or impossible.

This workshop, part of the Joint Ontology Workshops (JOWO 2019), aims to bring together research on all aspects to bad or good ontology design, including use cases and systematic reviews of bad or good ontology design, techniques and tools for diagnosing, explaining, and repairing bad ontologies, and approaches or benchmarks for evaluating such techniques.

The programme will focus on the part of recursion theory that studies subsets of the natural numbers beyond arithmetical sets, and the theory of computability or definability on domains beyond the set of natural numbers, including Martin's conjecture and higher randomness. In set theory, it will concern topics that have close connections with definability, such as Woodin's program on ultimate L, the HOD conjecture, and descriptive inner model theory.

This program also marks the 65th birthdays of Ted Slaman and Hugh Woodin, which occur in 2019 and 2020.

The philosophy department at the University of Bergen is pleased to invite applications for participation in an early-career masterclass on logical epistemology, with tutorials from both Roy Sorensen and Ole Hjortland. Participants will also have the opportunity to present their own work in the philosophy of logic with a 30-minute presentation, and receive feedback from experts in the field. Applicants should be doctoral candidates, or those within three years of obtaining their PhD.

Confirmed speakers:
* Roy Sorensen (Washington University, St. Louis): Topic TBA
* Ole Hjortland (University of Bergen): Logical Anti-Exceptionalism

The workshop brings together researchers working on the logic and the philosophy of type-free notions such as functions, classes, properties, and propositions.

Due to the logical paradoxes, the traditional approach arranges such entities in hierarchies: type-theory and traditional set theory are well-known examples. The resulting picture has the obvious drawback of leaving out many legitimate objects. For instance, many innocuous circular properties and propositions cannot be assigned a place in the hierarchical approach. Similarly, it is not possible to accommodate propositions expressing quantification over all levels in a hierarchy.

The aim of the workshop is to explore and compare different approaches to type-free notions that overcome such shortcomings. It will focus in particular on the formal frameworks employed to model them, and on their philosophical motivations and applications.

The standard view of narrative is inextricably bound up with the passage of time. Narrative scholars are convinced that time is an essential element in any narrative, and it has been thought equally essential, though treated in different ways, by philosophers of history. But exactly how to think about time in the narratives of science is not self-evident. And if we look at how scientists use time in narratives, we see a number of different ways in which it is taken into account and is deployed.

In this workshop, organised as a collaboration between the Narrative Science Project and The Royal Institution, the focus will be on the different temporalities in narratives as they occur in scientific discourses. The obvious loci for such explorations are what are generally referred to as the historical sciences, that is, those that seek to reconstruct the past on the basis of what can be observed in the present. However, time and its narrative expression are to be found in a wide variety of places, some of which will be explored by the speakers at the workshop. Throughout the workshop, the question of how essential time is to narrative will remain open for argument.

The goal of this interdisciplinary meeting is to explore philosophical and historical issues that arise at the intersection of theoretical computer science, mathematics, and natural science, including issues that arise in the practice of those disciplines.

Conference topics include: the history of computer science; the foundations of computation and mathematical cognition; computational and informational perspectives on scientific decision making, scientific methodology, and the characterisation of scientific theories; physical notions of computation and the 'Physical Church-Turing Thesis'.