International Conference on Automated Reasoning with Analytic Tableaux and Related Methods

Automated Reasoning with Analytic Tableaux and Related Methods pp 3-5 | Cite as

Invited Talk: Coherentisation of First-Order Logic

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9323)

Abstract

This talk explores the relationship between coherent (aka “geometric”) logic and first-order logic FOL, with special reference to the coherence/geometricity required of accessibility conditions in Negri’s work on modal logic (and our work with her on intermediate logic). It has been known to some since the 1970s that every first-order theory has a coherent conservative extension, and weaker versions of this result have been used in association with the automation of coherent logic; but, it is hard to find the result in the literature. We discuss various proofs of the result, and present a coherentisation algorithm with the desirable property of being idempotent. An announcement was in [7]; details can be found in [8].

Keywords

coherent logic accessibility conditions modal logic intermediate logic automated reasoning 

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.University of St AndrewsSt AndrewsUK

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