The Properties of L-lower Approximation Operators
Yong Chan Kim · International Journal of Fuzzy Logic and Intelligent Systems · 2014
In this paper, we investigate the properties of L-lower approximation operators as a generalization of fuzzy rough set in complete residuated lattices. We study relations lower (upper, join meet, meet join) approximation operators and Alexandrov L-topologies. Moreover, we give their examples as approximation operators induced by various L-fuzzy relations.