LLAL@GSIS (XI)

Aim

The aim of this edition of LLAL@GSIS meeting is to discuss and exchange new ideas and recent developments related to nonclassical logic and philosophical logic, broadly construed. Given that the meeting is planned on the occasion of Sara Ayhan's arrival to Sendai, and Jonas Arenhart's visit to Sendai, some special emphasis is laid on philosophical logic and philosophy of logic. 

Date & Venue

• Date: January 30, 2026.

• Venue: 3rd floor, Graduate School of Information Sciences, Tohoku University.  

Speakers

• Jonas R. B. Arenhart (Federal University of Santa Catarina & Tohoku University)

• Sara Ayhan (Tohoku University)

• Takako Nemoto (Tohoku University)

• Hitoshi Omori (Tohoku University)

• Masanobu Toyooka (Tohoku University)

Program

10:30--11:30 Sara Ayhan "Inferentialism meets Feminist Logic"

11:30--11:45 Break

11:45--12:45 Masanobu Toyooka "Three Benchmarks for Classical Connectives"

12:45--14:00 Lunch

14:00--15:00 Takako Nemoto "Reverse Mathematics"

15:00--15:15 Break 

15:15--16:15 Hitoshi Omori "Falsity Forward"

16:15--16:30 Break

16:30--17:30 Jonas R. B. Arenhart "Logical modalities for logical relativists"

Acknowledgement

This workshop is generously supported by the Graduate School of Information Sciences, Tohoku University, and by the Invitational Fellowship Program for Collaborative Research of Tohoku University.