Abstract:We show the number of fuzzy clopen sets in an arbitrary fuzzy topological space can be any natural number greater than 1 if it is finite. We give an upper bound for this number. We shall also prove that the number of all crisp fuzzy clopen sets in an arbitrary fuzzy topological space is a power of 2 if it is finite.
Keywords: clopen, enumerating, finite set, fuzzy clopen*This research has taken place while the author has a sabbatical leave from Yarmouk University.
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