amputation 发表于 2025-4-1 03:13:54
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M-valued Measure of Roughness for Approximation of ,-fuzzy Sets and Its Topological Interpretationd with a reflexive transitive .-fuzzy relation .. In case the relation . is also symmetric, these measures coincide and we call their value by the measure of roughness of rough approximation. Basic properties of such measures are studied. A realization of measures of rough approximation in terms of .-fuzzy topologies is presented.