Question: Let (S, d) be a dissimilarity space. Prove that d is an quasi-ultrametric 6 . Let ( S, d ) be a dissimilarity space .

Let (S, d) be a dissimilarity space. Prove that d is an quasi-ultrametric

6 . Let ( S, d ) be a dissimilarity space . Prove that d is an quasi - ultrametric if and only if for every u , u E S' we have B \\ u , d ( U , V) ] = B [ V , d ( U , V) ]

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