Intuitionistic T-S Fuzzy Subalgebras and Ideals in BCI-algebras Year: 2014 Volume: 8 Issue: 7 1079 - 1083 Pages Authors: Shaoquan Sun Qianqian Li Abstract: The aim of this paper is to introduce the notions of intuitionistic T-S fuzzy subalgebras and intuitionistic T-S fuzzy ideals in BCI-algebras, and then to investigate their basic properties. Keywords: BCI-algebra intuitionistic T-S fuzzy subalgebra intuitionistic T-S fuzzy ideal norm intersection direct product epimorphism isomorphism.