You're probably thinking of fuzzification and defuzzification, which are engineering steps. Mathematicians have continued to make hay with the family of "monot

You're probably thinking of fuzzification and defuzzification, which are engineering steps. Mathematicians have continued to make hay with the family of "monotone measures", of which probability, fuzzy logic, belief functions and so on are particular members. That I can express a problem geometrically or algebraically doesn't make one of them less useful or inspiring.