AN ABSTRACT CHARACTERIZATION OF DEMORGAN
-SEMIGROUP OF 4-ARY FUNCTIONS OVER A SET
Let W be a set and
?be the set of all 4-ary functions over W. In this paper, by considering four Mann?s compositions and one quasi-complementation operation on
?we obtain a DeMorgan
-semigroup and find an abstract characterization of this algebra.
-semigroup, DeMorgan
-semigroup, binary operations on 4-ary functions, Mann?s composition, characterization.
