Abstract
The first step of the development of the idea of intuitionistic fuzziness (see [1]), was related to introducing an intuitionistic fuzzy interpretation of the classical (standard) modal operators “necessity” and “possibility” (see, e.g., [2,3,4,5]). In the period 1988–1993, we defined eight new operators, extending the first two ones. In the end of last and in the beginning of this century, a lot of new operators were introduced. Here, we discuss the most interesting ones of them and study their basic properties.
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Atanassov, K.T. (2017). Intuitionistic Fuzzy Modal Logics. In: Intuitionistic Fuzzy Logics. Studies in Fuzziness and Soft Computing, vol 351. Springer, Cham. https://doi.org/10.1007/978-3-319-48953-7_3
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DOI: https://doi.org/10.1007/978-3-319-48953-7_3
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