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AIC Seminar Series

Gen2sat: A Generic Tool for Reasoning with Non-classical Logics

Yoni ZoharTel Aviv University[Home Page]

Notice:  Hosted by Richard Waldinger

Date:  Thursday, August 24th 2017 at 4:00pm

Location:  EK255 (SRI E building)  (Directions)


Available on VTC.

The wide adoption of modern SAT-solvers in industry and Academia has shown that propositional classical logic is a very powerful and useful tool. However, some aspects of reasoning, such as incomplete or imprecise information, are not representable in a natural way within classical logic, which led to the development of non-classical logics, such as constructive logics, many-valued logics, paraconsistent logics, and more.

While some of these logics are actually used in practice, there is still a major gap between the wide variety of non-classical logics that are investigated in the logic literature, and the few applications that use them. One possible explanation for this state of affairs is the lack of available tools for reasoning with non-classical logics, which requires the implementation of each logic from scratch.

In this talk I will present Gen2sat, a tool that makes it easier to implement a wide variety of propositional non-classical logics, including many paraconsistent logic and multi-valued logics. The key feature of Gen2sat is that its input consists not only of a logical formula, but also of a (proof theoretical) description of the logic in which the formula should be checked. This is done by a uniform reduction to SAT that goes through a general semantic interpretation of derivation rules. Shifting the intricacies of implementation and heuristic considerations to the realm of off-the-shelf SAT solvers, Gen2sat brings classical SAT-solver technology to the realm of non classical logics.

   Bio for Yoni Zohar

Yoni Zohar is a fifth-year PhD student at the school of computer science of Tel Aviv University. His research focuses on semantics and proof theory of non-classical logics.

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