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Part of the book series: Studies in Fuzziness and Soft Computing ((STUDFUZZ,volume 367))

Abstract

In this chapter we will present basic notions and definitions constituting the basis of fuzzy set theory. Moreover, particular attention has been paid to the some extensions of fuzzy set theory, which involves imperfect or unknown situations as the uncertainty models. The definition and basic properties of these types of fuzzy sets are presented.

The idea of discovery is generally imprecise.

Henryk Elzenberg

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Correspondence to Barbara Pȩkala .

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Pȩkala, B. (2019). Introduction to Fuzzy Sets. In: Uncertainty Data in Interval-Valued Fuzzy Set Theory. Studies in Fuzziness and Soft Computing, vol 367. Springer, Cham. https://doi.org/10.1007/978-3-319-93910-0_1

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