The university caculate formula of a /spl sigma/similarity measure of fuzzy sets

The universal calculate formula or σ-similarity measure of fuzzy sets is deduced by depending upon the σ-additivity, and the proposition or σ-slmllarity measure Is discussed by this universal calculate formula. Acrordlng this formula, we can lind that the slmllarity measure des to l^p-distance has σ-additivity only if p = 1.