Generalizing expected values to the case of L^*-fuzzy events

Abstract

Starting with [Goguen, J.A. 1967. Journal of Mathematical Analysis and Applications], several generalizations of the original definition of a fuzzy set have been proposed. In one popular case, one considers as truth values the points in the lower left triangle of the unit square, where their first coordinate is interpreted as "degree of membership", and their second coordinate as "degree of nonmembership". Generalizing ideas in [