A four-valued fuzzy propositional logic

Authors:
Umberto Straccia
Affiliations:
Istituto di Elaborazione della Informazione, Pisa, PI, Italy
Venue:
IJCAI'97 Proceedings of the 15th international joint conference on Artifical intelligence - Volume 1
Year:
1997

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Abstract

It is generally accepted that knowledge based systems would be smarter and more robust if they can manage inconsistent, incomplete or imprecise knowledge. This paper is about a four-valued fuzzy propositional logic, which is the result of the combination of a four-valued logic and a fuzzy propositional logic. Besides the nice computational properties, the logic enables us also to deal both with inconsistency and imprecise predicates in a simple way.