2022/05/13 by Haohao Wang, Bin Yang, Wang, Haohao +3
Decision Sciences · Computer Science · #Fuzzy and Soft Set Theory #Fuzzy Logic and Control Systems #Rough Sets and Fuzzy Logic
paper · pdf · doi:10.48550/arxiv.2205.09231
Rosenfeld defined a fuzzy subgroup of group G as a fuzzy subset of G with two special conditions attached\citeRosenfeld1971Fuzzysubgroups. In this paper, we introduce the fuzzy t-norms and vague t-norms. The unit interval with a t-norm or a t-conorm is a special monoid, so we mainly talk about fuzzy subsets of monoids and vague monoids. Firstly, we generalize some properties of t-norm to fuzzy t-subnorm, so that we can analyze and classify the fuzzy t-norms. Further, we explore specific research on these properties of the vague t-norm. In addition, the concept of lattice is introduced, and then the present conclusions are extended to bounded lattices. Finally, we define the concept of fuzzy monoids by aggregate functions, uninorms, nullnorms and draw the relevant results.