CLASSIFICATIONS OF (α, β)-FUZZY SUBALGEBRAS OF BCK/BCI-ALGEBRAS Jun, Young Bae; Ahn, Sun Shin; Lee, Kyoung Ja;
Classications of ()-fuzzy subalgebras of BCK/BCI-algebras are discussed. Relations between ()-fuzzy subalgebras and ()-fuzzy subalgebras are established. Given special sets, so called t-q-set and t--set, conditions for the t-q-set and t--set to be subalgebras are considered. The notions of -fuzzy subalgebra, -fuzzy subalgebra and -fuzzy subalgebra are introduced. Conditions for a fuzzy set to be an -fuzzy subalgebra, a -fuzzy subalgebra and a -fuzzy subalgebra are considered.