Unfortunately the speaker had to cancel today's DIP Colloquium, due to coming down with a (non-covid) fever. We hope to have Madgalena Kaufmann present sometime in the next semester.

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 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 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.

Abstract:

While possible worlds can be seen as the semantic backbone of epistemic logic, they can be tedious to deal with. In this talk I introduce epistemic presentations, a kind of structure wherein "issues on the table" are primitive objects and possible worlds are only derivative. In addition to be more flexible, these models lend themselves to an interesting algebraic approach and provide inspiration for new dynamic operators.

Location:

We have a room in the big building of Science Park (house 904, room SPC1.110) with corona capacity 44. The talk will also be streamed live on Zoom. For the Zoom address, please email coollogic.uva at gmail.com.

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.

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.

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.

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.

Abstract: I present some applications of logical methods (in particular, of so-called dynamic epistemic logics) to the study of emergent phenomena in groups of `agents', capable of reflection, communication, reasoning, argumentation etc.The main focus on the understanding of belief/preference formation and diffusion in social networks, and on how this affects the group's ``epistemic potential": the ability of the agents to track the truth of the matter (with respect to some given relevant topic). While in some cases, ``wisdom of the crowds" can increase the epistemic potential, in other situations the group's dynamics leads to informational distortions (-- the ``madness of the crowds": cascades, ``groupthink", the curse of the committee, pluralistic ignorance, group polarization, doxastic cycles etc). I explain how logic (in combination with probabilistic methods) can be used to provide some explanations for both types of situations, as well as to suggest some partial solutions to informational distortions.

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.

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.

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.

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.

The Nordic Online Logic Seminar (NOL Seminar) is organised monthly over Zoom, with expository talks on topics of interest for the broader logic community. The seminar is open for professional or aspiring logicians and logic aficionados worldwide.

If you wish to receive the Zoom ID and password for the talk, as well as further announcements, please subscribe here: https://listserv.gu.se/sympa/subscribe/nordiclogic .
Val Goranko and Graham Leigh, NOL seminar organisers

Zoom link: https://uva-live.zoom.us/j/84765092578

The EXPRESS-IHPST workshop online workshop Truth, proof and communication, jointly organised by the European Research Council project EXPRESS (grant agreement no. 758540) and the IHPST, brings together researchers from the ILLC at the University of Amsterdam and IHPST, UMR 8590, CNRS and Université Paris 1 Panthéon-Sorbonne. It will take place on 21-22 June from 14 to 18 in the afternoon, and will consist of three talks per day. Each talk will last 60 minutes including discussion, and coffee breaks are planned in between talks. Attendance is free and everybody is welcome. The registration form can be found on the website.

Speakers: Aybüke Özgün (ILLC, Amsterdam); Francesco Genco (IHPST, Paris); Leïla Bussière-Caraes (ILLC, Amsterdam); Yuta Takahashi (IHPST, Paris); Giorgio Sbardolini (ILLC, Amsterdam); Francesca Poggiolesi (IHPST, Paris).

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.

The EXPRESS-IHPST workshop online workshop Truth, proof and communication, jointly organised by the European Research Council project EXPRESS (grant agreement no. 758540) and the IHPST, brings together researchers from the ILLC at the University of Amsterdam and IHPST, UMR 8590, CNRS and Université Paris 1 Panthéon-Sorbonne. It will take place on 21-22 June from 14 to 18 in the afternoon, and will consist of three talks per day. Each talk will last 60 minutes including discussion, and coffee breaks are planned in between talks. Attendance is free and everybody is welcome. The registration form can be found on the website.

Speakers: Aybüke Özgün (ILLC, Amsterdam); Francesco Genco (IHPST, Paris); Leïla Bussière-Caraes (ILLC, Amsterdam); Yuta Takahashi (IHPST, Paris); Giorgio Sbardolini (ILLC, Amsterdam); Francesca Poggiolesi (IHPST, Paris).

Zoom link: https://uva-live.zoom.us/j/83100972302

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.

Zoom link: https://uva-live.zoom.us/j/86936186858

Traditional epistemic logic often comes without any notion of evidence and renders belief and knowledge susceptible to logical omniscience. I present an approach that defines belief and knowledge based on hyperintensional evidence, which comes with a notion of evidential aboutness and gives rise to more realistic epistemic agents.

Zoom ID TBA.

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.

A hybrid evening of research, music, and emotion. Honorary Frijda Chair holder Prof. dr. David Huron guides us through the science of sad sounds, addressing two questions:
 - What makes something sound sad?
 - And how is it that listening to sad music can be enjoyable?
Enriched by an interdisciplinary panel discussion, and accompanied by a measured dose of sad music.

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!