Fuzzy ideals in demi-pseudocomplemented MS-algebras

The Commutator of Fuzzy Congruences in Universal Algebras

“…In 1971, A.Rosenfeld [3] applied this theory and has formulated the concept of a fuzzy subgroup of a group. Since then, many researchers have been studying fuzzy subalgebras of several algebraic structures such as rings (see [4][5][6]), modules (see [7][8][9]), vector spaces (see [10,11]), lattices (see [12][13][14][15][16][17]), pseudo-complemented semi-lattice (see [18]), posets (see [19,20]), MS-algebras (see [21][22][23][24]), universal algebras (see [25][26][27][28]), etc.…”