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The concept of Pythagorean Fuzzy Sets (PFSs) was initially developed by Yager in 2013, which provides a novel way to model uncertainty and vagueness with high precision and accuracy compared to Pythagorean Fuzzy Sets (PFSs).The concept was concretely designed to represent uncertainty and vagueness in mathematical way and to furnish a formalized tool for tackling imprecision to real problems. In this paper, various operations in Pythagorean Fuzzy Sets are discussed. Some theorems are proved for establishing the properties of Pythagorean fuzzy operators with respect to different Pythagorean fuzzy sets.
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