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title:
 
R-implications and the Exchange Principle:A Complete Characterization
publication:
 
EUSFLAT
part of series:
  Advances in Intelligent Systems Research
pages:   223 - 229
DOI:
  To be assigned soon (how to use a DOI)
author(s):
 
Balasubramaniam Jayaram, Michal Baczyski, Radko Mesiar
publication date:
 
July 2011
keywords:
 
R-implication, t-norm, exchange principle, fuzzy implication.
abstract:
 
It is well-known that the residual IT of a leftcontinuous t-norm T satisfies the exchange principle (EP), viz., IT (x, IT (y, z)) = IT (y, IT (x, z)) for all x, y, z [0, 1]. However, the left-continuity of T is only sufficient and not necessary, as many examples in the literature illustrate. In this work we study the necessary conditions on a t-norm T for its residual to satisfy (EP). The work presents a complete characterization of the class of t-norms whose residuals satisfy (EP).
copyright:
 
© Atlantis Press. This article is distributed under the terms of the Creative Commons Attribution License, which permits non-commercial use, distribution and reproduction in any medium, provided the original work is properly cited.
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