THE n -FOLD COMMUTATIVE BCK-ALGEBRAS
Hua Xie · Journal of Longyan Teachers College · 1994
In the note -we introduce the concept of n ?fold commutatiue BCK-algebras which it is a sort of generalization of commutative BCK-algebras,and investigate the relation betreen it and some special types of BCK-algebras,and prove that if n≥2,the n-fold commutative BCK-algebraic class does not form a variety.