The minimal negation operator ('''mno''') has a legion of aliases: ''logical boundary operator'', ''[[limen|limen operator]]'', ''threshold operator'', or ''least action operator'', to name but a few. The rationale for these names is visible in the [[venn diagram]]s of the corresponding operations on [[set]]s. | The minimal negation operator ('''mno''') has a legion of aliases: ''logical boundary operator'', ''[[limen|limen operator]]'', ''threshold operator'', or ''least action operator'', to name but a few. The rationale for these names is visible in the [[venn diagram]]s of the corresponding operations on [[set]]s. |