+A **membership function** quantifies the degree to which an element belongs to a [Fuzzy Set](/wiki/fuzzy_set). Unlike classical [Set Theory](/wiki/set_theory), it maps each input to a value between 0 and 1, revealing its partial truth rather than absolute inclusion or exclusion.
+## See also
+- [Fuzzy Logic](/wiki/fuzzy_logic)
+- [Fuzzy Set](/wiki/fuzzy_set)
+- [Defuzzification](/wiki/defuzzification)