[en] We investigate extensions of temporal logic by connectives defined by finite automata on infinite words. We consider three different logics, corresponding to three different types of acceptance conditions (finite, looping, and repeating) for the automata. It turns out, however that these logics all have the same expressive power and that their decision problems are all PSPACE-complete. We also investigate connectives defined by alternating automata and show that they do not increase the expressive power of the logic or the complexity of the decision problem. (C) 1994 Academic Press, Inc.
Disciplines :
Mathématiques Sciences informatiques
Auteur, co-auteur :
Vardi, Moshe Y.
Wolper, Pierre ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore)
Langue du document :
Anglais
Titre :
Reasoning about Infinite Computations
Date de publication/diffusion :
1994
Titre du périodique :
Information and Computation
ISSN :
0890-5401
eISSN :
1090-2651
Maison d'édition :
Academic Press, San Diego, Etats-Unis - Californie
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