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Fuzzy set theory applied to implicative ideals in $BCK$-algebras

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Abstract

As a continuation of [4], characterizations of fuzzy im-plicative ideals are given. An extension property for fuzzy implica-tive ideals is established. We prove that the family of fuzzy implica-tive ideals is a completely distributive lattice. Using level subsets ofa BCK -algebraX with respect to a fuzzy setA in X , we constructa fuzzy implicative ideal ofX containing A.

참고문헌 (6)

  1. "On ideals in $BCK$-algebras", pp.1~ (1975), } Math. Sem. Notes Kobe Univ. \textbf
  2. "An introduction to the theory of $BCK$-algebras", pp.1~ (1978)
  3. "Characterizations of fuzzy positive implicative ideals in $BCK$-algebras", pp.503~ (1994)
  4. "Fuzzy implicative ideals in $BCK$-algebras", 26(2), pp.119~124 (1995)
  5. "Fuzzy commutative ideals of $BCK$-algebras", pp.401~ (1994)
  6. "Quotient $BCK$-algebras induced by a fuzzy ideal", 23(2), pp.243~251 (1999)

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