Report B 00-02
January 2000
Abstract
There has been a number of papers proposing different extensions of the
Hausdorff metric for fuzzy sets. None of these proposals behaves as one
would intuitively expect. It is the aim of this paper to show that under a
reasonable set of axioms, like triangle inequality, invariance under motions,
and independence of the length unit, there is no metric on the nonempty
bounded fuzzy subsets of an euclidean space.
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