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DOI: 10.4230/LIPIcs.CSL.2024.13

A Natural Intuitionistic Modal Logic: Axiomatization and Bi-Nested Calculus

Authors: Philippe Balbiani, Han Gao, Çiğdem Gencer, and Nicola Olivetti

Published in: LIPIcs, Volume 288, 32nd EACSL Annual Conference on Computer Science Logic (CSL 2024)

Abstract

We introduce FIK, a natural intuitionistic modal logic specified by Kripke models satisfying the condition of forward confluence. We give a complete Hilbert-style axiomatization of this logic and propose a bi-nested calculus for it. The calculus provides a decision procedure as well as a countermodel extraction: from any failed derivation of a given formula, we obtain by the calculus a finite countermodel of it directly.

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Philippe Balbiani, Han Gao, Çiğdem Gencer, and Nicola Olivetti. A Natural Intuitionistic Modal Logic: Axiomatization and Bi-Nested Calculus. In 32nd EACSL Annual Conference on Computer Science Logic (CSL 2024). Leibniz International Proceedings in Informatics (LIPIcs), Volume 288, pp. 13:1-13:21, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@InProceedings{balbiani_et_al:LIPIcs.CSL.2024.13,
  author =	{Balbiani, Philippe and Gao, Han and Gencer, \c{C}i\u{g}dem and Olivetti, Nicola},
  title =	{{A Natural Intuitionistic Modal Logic: Axiomatization and Bi-Nested Calculus}},
  booktitle =	{32nd EACSL Annual Conference on Computer Science Logic (CSL 2024)},
  pages =	{13:1--13:21},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-310-2},
  ISSN =	{1868-8969},
  year =	{2024},
  volume =	{288},
  editor =	{Murano, Aniello and Silva, Alexandra},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2024.13},
  URN =		{urn:nbn:de:0030-drops-196565},
  doi =		{10.4230/LIPIcs.CSL.2024.13},
  annote =	{Keywords: Intuitionistic Modal Logic, Axiomatization, Completeness, Sequent Calculus}
}

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A Natural Intuitionistic Modal Logic: Axiomatization and Bi-Nested Calculus

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