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Logic seminar

usually takes place each Monday at 13:30 temporarily on Zoom starting at 15:30, normally in IM, rear building, ground floor
Chair: Pavel Pudlak, Neil Thapen, Jan Krajíček
More information on the old seminar web page. The programme is announced via the mailing list.

QBF Solving and Calculi, Overview

Mikolas Janota
CIIRC
Monday, 23. November 2020 - 15:30 to 17:00
Zoom meeting 472 648 284 - https://cesnet.zoom.us/j/472648284
Quantified Boolean Formulas (QBFs) enrich the SAT problem with quantifiers taking the problem from NP to PSPACE. Recent years have seen a number of novel approaches to QBF solving. At the same time, QBF calculi were developed to match the solvers. However, there are calculi with no solving counterparts.

In this talk I will overview the two prominent paradigms in QBF solving: conflict-driven and expansion-based. I will also discuss the connection between solving and the existing proof systems as well as challenges for future research.

TBA

TBA
TBA
Monday, 30. November 2020 - 15:30 to 17:00
Zoom meeting 472 648 284 - https://cesnet.zoom.us/j/472648284
TBA

TBA

Jeremy Avigad
Carnegie Mellon University
Monday, 7. December 2020 - 15:30 to 17:00
Zoom meeting 472 648 284 - https://cesnet.zoom.us/j/472648284
TBA

TBA

Sam Buss
University of California, San Diego
Monday, 14. December 2020 - 15:30 to 17:00
Zoom meeting 472 648 284 - https://cesnet.zoom.us/j/472648284
TBA