On Pythagorean fuzzy subgroup
Résumé
The notion of a fuzzy Pythagorean was introduced by R.R. Yager as a generalization of an
intuitionistic fuzzy sets. In this paper, we introduced the notion of a fuzzy Pythagorean point to study for
the first time the notion of Pythagorean fuzzy subgroups and its properties. This new concept allowed us to
reformulate all the mathematical properties of a fuzzy Pythagorean subgroups.
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