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Fuzzy set theory generalizes the classical set theory. The functions used for the intersection of fuzzy sets are called t-norms and those used for union are called t-conorms (Buckley & Eslami, 2002; Wang et al., 2009). Other fuzzy set oriented operators, such as complement, implication, comparison, and equivalence can also be studied.


Cover of Fuzzy Methods for Customer Relationship Management and Marketing


These are merely basic Fuzzy Set operations.