In the [[Ontology]] tool [[Protege]], they give prominent positioning to the `Class Disjoint` feature, which was surprising at first. Since learning what it was, I've adopted the vocab word. Turns out it's a basic part of the [[Ontology Language]] [[OWL]]. > [!cite] Disjoint > Classes that are _disjoint_ cannot have any common instance [[Turtle]] expression for disjointedness: ```turtle [] rdf:type owl:AllDisjointClasses ; owl:members ( :Woman :Man ) . ``` # Example disjoints: - animalia / plantea - internal candidate / external candidate - EV / Gas-powered vehicle / Hybrid vehicle **** # More ## Source - Documentation for protégé ## Related