Intuitionistic Fuzzy Subalgebras of Several Types in Sheffer Stroke Hilbert Algebras

Characterizations of an (E, E)-intuitionistic fuzzy subalgebra and an (q(kT,KF), EV q(KT,KF))-intuitionistic fuzzy subalgebra are provided. Given special sets, so called intuitionistic fuzzy E-subsets, intuitionistic fuzzy q-subsets and intuitionistic fuzzy (q(kT,KF), EV q(KT,KF))-subsets, conditions for the intuitionistic fuzzy (q(kT,KF), EV q(KT,KF))-subsets, intuitionistic fuzzy -subsets and intuitionistic fuzzy -subsets to be subalgebras are discussed.