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On different classes of linguistic variables defined via fuzzy subsets. (English) Zbl 0544.03008
The linguistic variables considered in fuzzy logic are divided into three classes: variables indicating a fuzzy set as their value, variables indicating elements of a fuzzy set as their values, and variables having no values in actual fuzzy sets but being ideas or concepts only. These classes are characterized and their properties are derived.
Reviewer: M.MareŇ°

03B52 Fuzzy logic; logic of vagueness
03E72 Theory of fuzzy sets, etc.
Full Text: DOI
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