Formalized Soundness and Completeness of Epistemic Logic

Asta Halkjær From

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

Abstract

We strengthen the foundations of epistemic logic by formalizing the family of normal modal logics in the proof assistant Isabelle/HOL. We define an abstract canonical model and prove a truth lemma for any logic in the family. We then instantiate it with logics based on various epistemic principles to obtain completeness results for systems from K to S5. Our work gives a disciplined treatment of completeness-via-canonicity arguments and demonstrates their compositionality.
Original languageEnglish
Title of host publicationLogic, Language, Information, and Computation
PublisherSpringer
Publication date2021
Pages1-15
ISBN (Print)978-3-030-88852-7
DOIs
Publication statusPublished - 2021
Event27th International Workshop on Logic, Language, Information and Computation - Online Event
Duration: 5 Oct 20218 Oct 2021
Conference number: 27
https://link.springer.com/book/10.1007/978-3-030-88853-4

Workshop

Workshop27th International Workshop on Logic, Language, Information and Computation
Number27
LocationOnline Event
Period05/10/202108/10/2021
Internet address
SeriesLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume13038
ISSN0302-9743

Keywords

  • Canonicity
  • Completeness
  • Epistemic logic
  • Isabelle/HOL

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