, Volume 18, Issue 4, pp 437-464
Date: 22 Apr 2009

Terminating Tableau Systems for Hybrid Logic with Difference and Converse

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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.