| − | Crisp sets are traditional sets in mathematics, called "crisp" in fuzzy logic to distinguish crisp sets from fuzzy sets. In crisp sets, an object must either belong to a set or not belong to it. | + | '''Crisp [[set]]s''' are traditional sets in [[mathematics]], called "crisp" in fuzzy logic to distinguish crisp sets from fuzzy sets. In crisp sets, an object must either belong to a set or not belong to it. |