T-norms induced by metrics on boolean algebras

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Authors:
Thomas Vetterlein
Title: t-norms induced by metrics on boolean algebras
Journal: Soft Computing
Volume 10
Number
Pages: 995 - 1000
Year: 2006





Abstract

Let dν be the metric associated with a strictly positive submeasure ν on some boolean algebra \mathcal P. If dν is bounded from above by 1, Eν = 1 − dν is a (fuzzy) similarity relation on \mathcal P at least w.r.t.the Lukasiewicz t-norm, but possibly also w.r.t. numerous further t-norms.

In this paper, we show that under certain assumptions on \mathcal P and ν, we may associate with ν in a natural way a continuous t-norm w.r.t. which Eν is a similarity relation and which, in a certain sense, is the weakest such t-norm. Up to isomorphism, every continuous t-norm arises in this way.

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