作者: L. Kwuida , B. B. Koguep Njionou , M. Onabid , G. Nguepy Dongmo
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摘要: In 2004 Anna Maria Radzikowska et al \cite{RK2004} investigated the fuzzy rough sets where set of truth values is an arbitrary residuated lattice. this paper, we extend their work by considering a multilattice $M$ as values. $M$-fuzzy are defined using residuation operators provided $M$. Depending on classes binary relations, define several and investigate some properties these classes.