2006 | OriginalPaper | Buchkapitel
Anti-prenexing and Prenexing for Modal Logics
verfasst von : Cláudia Nalon, Clare Dixon
Erschienen in: Logics in Artificial Intelligence
Verlag: Springer Berlin Heidelberg
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Efficient proof methods for normal modal logics are highly desirable, as such logical systems have been widely used in computer science to represent complex situations. Resolution-based methods are often designed to deal with formulae in a normal form and the efficiency of the method (also) relies on how efficient (in the sense of producing fewer and/or shorter clauses) the translation procedure is. We present a normal form for normal modal logics and show how the use of simplification, for specific normal logics, together with anti-prenexing and prenexing techniques help us to produce better sets of clauses.