Sets are mutually-disjoint if and only if there is no object that is a member of all of the sets.Notes:
- Source: KIF Version 3.0 Specification
(<=> (Mutually-Disjoint @Sets) (Empty (Intersection @Sets)))
(Undefined@Ol-User%Kif-Extensions (Arity@Frame-Ontology Mutually-Disjoint))