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Making fuzzy description logic more general. (English) Zbl 1094.03014
Summary: A version of fuzzy description logic based on the basic (continuous t-norm based) fuzzy predicate logic BL is presented. Problems of satisfiability, validity and subsumption of concepts are discussed and reduced to problems of fuzzy propositional logic known to be decidable for any continuous t-norm. For Łukasiewicz t-norm some stronger results are obtained.

03B52 Fuzzy logic; logic of vagueness
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