TY - JOUR AU - Farhadinia, Bahram AU - Chiclana Parrilla, Francisco PY - 2021 UR - http://hdl.handle.net/10481/68692 AB - This contribution deals with introducing the innovative concept of extended fuzzy set (E-FS), in which the S-norm function of membership and non-membership grades is less than or equal to one. The proposed concept not only encompasses the concept of... LA - eng PB - MDPI KW - Fuzzy set (FS) KW - Intuitionistic fuzzy set (IFS) KW - Pythagorean fuzzy set (PFS) KW - P-rung orthopair fuzzy set (p-ROFS) KW - Extended fuzzy set (E-FS) KW - Decision making TI - Extended Fuzzy Sets and Their Applications DO - 10.3390/math9070770 ER -