| HAL : hal-00020069, version 1 |
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| Journal of Computer and System Sciences (JCSS) 46 (1993) 271-294 |
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| On the expressive power of temporal logic for finite words |
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| Joelle Cohen 1Dominique Perrin 2 |
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| (1993) |
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| We study the expressive power of linear propositional temporal logic interpreted on finite sequences or words. We first give a transparent proof of the fact that a formal language is expressible in this logic if and only if its syntactic semigroup is finite and aperiodic. This gives an effective algorithm to decide whether a given rational language is expressible. Our main result states a similar condition for the "restricted" temporal logic (RTL), obtained by discarding the until operator. A formal language is RTL-expressible if and only if its syntactic semigroup is finite and satisfies a certain simple algebraic condition. This leads to a polynomial time algorithm to check whether the formal language accepted by an n-state deterministic automaton is RTL-expressible. |
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| 1 : | Laboratoire d'Algorithmique Complexité et Logique (LACL) |
| CNRS : FRE2673 – Université Paris XII - Paris Est Créteil Val-de-Marne | |
| 2 : | Laboratoire d'Informatique Gaspard-Monge (LIGM) |
| Université Paris Est Marne-la-Vallée – ESIEE – Ecole des Ponts ParisTech – Fédération de Recherche Bézout – CNRS : UMR8049 | |
| 3 : | Laboratoire d'informatique Algorithmique : Fondements et Applications (LIAFA) |
| CNRS : UMR7089 – Université Paris VII - Paris Diderot | |
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| Domaine | : | Informatique/Logique en informatique Informatique/Mathématique discrète |
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| temporal logic – finite semigroups – varieties of semigroups – finite automata |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00020069, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00020069 | |
| oai:hal.archives-ouvertes.fr:hal-00020069 | |
| Contributeur : Jean-Eric Pin | |
| Soumis le : Samedi 4 Mars 2006, 16:15:51 | |
| Dernière modification le : Samedi 4 Mars 2006, 17:39:52 | |