Decidability of the Guarded Fragment with the Transitive Closure
نویسنده
چکیده
We consider an extension of the guarded fragment in which one can guard quanti ers using the transitive closure of some binary relations. The obtained logic captures the guarded fragment with transitive guards, and in fact extends its expressive power non-trivially, preserving the complexity: we prove that its satis ability problem is 2Exptime-
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A general method for proving decidability of intuitionistic modal logics
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