EXPTIME Tableaux for the Coalgebraic Mu-Calculus


Cirstea, Corina, Kupke, Clemens and Pattinson, Dirk (2009) EXPTIME Tableaux for the Coalgebraic Mu-Calculus. In, Computer Science Logic 2009 Springer, 179-193.

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Description/Abstract

The coalgebraic approach to modal logic provides a uniform framework that captures the semantics of a large class of structurally different modal logics, including e.g. graded and probabilistic modal logics and coalition logic. In this paper, we introduce the coalgebraic mu-calculus, an extension of the general (coalgebraic) framework with fixpoint operators. Our main results are completeness of the associated tableau calculus and EXPTIME decidability. Technically, this is achieved by reducing satisfiability to the existence of non-wellfounded tableaux, which is in turn equivalent to the existence of winning strategies in parity games. Our results are parametric in the underlying class of models and yield, as concrete applications, previously unknown complexity bounds for the probabilistic mu-calculus and for an extension of coalition logic with fixpoints.

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Electronic & Software Systems
ePrint ID: 267695
Date Deposited: 22 Jul 2009 12:57
Last Modified: 27 Mar 2014 20:13
Publisher: Springer
Further Information:Google Scholar
ISI Citation Count:7
URI: http://eprints.soton.ac.uk/id/eprint/267695

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