Game logic is strong enough for parity games

Studia Logica 75 (2):205 - 219 (2003)
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We investigate the expressive power of Parikh's Game Logic interpreted in Kripke structures, and show that the syntactical alternation hierarchy of this logic is strict. This is done by encoding the winning condition for parity games of rank n. It follows that Game Logic is not captured by any finite level of the modal -calculus alternation hierarchy. Moreover, we can conclude that model checking for the -calculus is efficiently solvable iff this is possible for Game Logic.



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Citations of this work

The Variable Hierarchy for the Games Μ-Calculus.Walid Belkhir & Luigi Santocanale - 2010 - Annals of Pure and Applied Logic 161 (5):690-707.
Deciding the Unguarded Modal -Calculus.Oliver Friedmann & Martin Lange - 2013 - Journal of Applied Non-Classical Logics 23 (4):353-371.
On Guarded Transformation in the Modal -Calculus.F. Bruse, O. Friedmann & M. Lange - 2015 - Logic Journal of the IGPL 23 (2):194-216.

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