Generators of T-norms
The method of constructing t-norms by generators consists in using a unary function (generator) to transform some known binary function (most often, addition or multiplication) into a t-norm.
In order to allow using non-bijective generators, which do not have the inverse function, the following notion of pseudo-inverse function is employed:
- Let f: → be a monotone function between two closed subintervals of extended real line. The pseudo-inverse function to f is the function f (−1): → defined as
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