Intuitionistic fuzzy sets or orthopair fuzzy sets?

  title={Intuitionistic fuzzy sets or orthopair fuzzy sets?},
  author={Gianpiero Cattaneo and Davide Ciucci},
  booktitle={EUSFLAT Conf.},
Intuitionistic Fuzzy Sets (IFS) are defined as pairs of mutually orthogonal fuzzy sets. We discuss this approach from an algebraic point of view. As a result we characterize two implication operators on the collection of IFS, which on a particular subset of IFS behave as a Lukasiewicz and a Gödel implication. 

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