作者: Luís Moniz Pereira , Joaquim N. Aparício , José J. Alferes
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摘要: Our purpose is to develop a modular systematic method of representing nonmonotonic reasoning problems with the Well Founded Semantics extended logic programs augmented eXplicit negation (WFSX), and by its Contradiction Removal (CRSX) when needed. We show how cast in language such forms non-monotonic like defeasible hypothetical reasoning, apply them different domains knowledge representation, for instance taxonomic hierarchies about actions. then abstract programming.