Recent Literature Collected by Didier DUBOIS, Henri PRADE and Salvatore SESSA
Fuzzy Sets and Systems
Dialectics of counting and the mathematics of vagueness
Transactions on Rough Sets XV
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Already in the early stages of the development of fuzzy set theory, it has been recognized that fuzzy sets can be defined and represented in several different ways. In this paper we first define fuzzy sets within the classical set theory by suitable nested families of sets, and then we discuss how this definition is related to the usual definition by membership functions.