On the Ordering Property and Law of Importation in Fuzzy Logic

  • Authors:
  • Huiwen Deng;Huan Jiang

  • Affiliations:
  • Southwest University, China;Southwest University, China

  • Venue:
  • International Journal of Artificial Life Research
  • Year:
  • 2010

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Abstract

In this paper, the authors investigate the ordering property (OP),, together with the general form of the law of importation(LI), i.e.,, whereis a t-norm andis a fuzzy implication for the four main classes of fuzzy implications. The authors give necessary and sufficient conditions under which both (OP) and (LI) holds for S-, R-implications and some specific families of QL-, D-implications. Following this, the paper proposes the sufficient condition under which the equivalence between CRI and triple I method for FMP can be established. Moreover, this conclusion can be viewed as a unified triple I method, a generalized form of the known results proposed by Wang and Pei.