Terminating Tableau Systems for Hybrid Logic with Difference and Converse

  • Authors:
  • Mark Kaminski;Gert Smolka

  • Affiliations:
  • Department of Computer Science, Saarland University, Saarbrücken, Germany 66123;Department of Computer Science, Saarland University, Saarbrücken, Germany 66123

  • Venue:
  • Journal of Logic, Language and Information
  • Year:
  • 2009

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Abstract

This paper contributes to the principled construction of tableau-based decision procedures for hybrid logic with global, difference, and converse modalities. We also consider reflexive and transitive relations. For converse-free formulas we present a terminating control that does not rely on the usual chain-based blocking scheme. Our tableau systems are based on a new model existence theorem.