Fuzzy H-Ideals of BCI-Algebras with Interval Valued Membership Functions
A. Kordi, A. Moussavi, Abulfazl Ahmadi · 2008
The purpose of this paper is to define the notion of an interval- valued fuzzy H-ideal(briefly, an i − v fuzzy H-ideal) of a BCI-algebra. Nec- essary and sufficient conditions for an i − v fuzzy ideal to be an i − v fuzzy H-ideal are stated. A way to make a new i − v fuzzy H-ideal from old one is given.