On measuring the fuzziness and the nonfuzziness of intuitionistic fuzzy sets.
Bifuzzy sets and other generalizations of a fuzzy set
The article presents the new concept of a fuzzy set, namely bifuzzy set. In original papers [2]-[15] it is used the name „intuitionistic fuzzy set" but it is not really adequate. We describe the idea of such a set and basic definitions and theorems of bifuzzy set theory. At last we present some other concepts describing fuzzy objects and give a rich literature to them.
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