Abstract
In chapter 2 the basic definition of a fuzzy set was given and the original set-theoretic operations were discussed. The membership space was assumed to be the space of real numbers, membership functions were crisp functions, and the operations corresponded essentially to the operations of dual logic or Boolean algebra.
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© 1991 Springer Science+Business Media New York
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Zimmermann, HJ. (1991). Extensions. In: Fuzzy Set Theory — and Its Applications. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-7949-0_3
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DOI: https://doi.org/10.1007/978-94-015-7949-0_3
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-015-7951-3
Online ISBN: 978-94-015-7949-0
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