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Possibilistic logic is essentially a formalism for handling qualitative uncertainty with an inference machinery that remains close to the one of classical logic. It is capable of handling graded modal information under t...
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The difference between Bayesian conditioning and Lewis' imaging is somewhat similar to the one between Gardenfors' belief revision and Katsuno and Mendelzon' updating in the logical framework. Counterparts in possibility...
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In this short note a definition of the necessity measure in case of a subnormal possibility distribution already proposed by the authors is recalled. This definition both satisfies the axiomatics of necessity measures an...
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This paper deals successively with differentiation of ordinary functions at a fuzzy point and with differentiation of fuzzy-valued functions at a nonfuzzy point. In both cases the concept of differentiation is extended a...