OWL Class

Created on March 11, 2013, 4:29 p.m. by Hevok & updated by Hevok on May 2, 2013, 5:32 p.m.

There are two predifined Classes in OWL which are from Description Logic, and are the Top Class and the Bottom Class. In OWL it is owl:Thing and owl:Nothing, the empty Class.

Classes start with a Capital Letter.

Defining an OWL Class is easy. For instance, Denigma is an owl:Class. Thus Denigma is of RDF type owl:Class

  • There exist two predifined Classes
    • owl:Thing (class that contains all individuals) ⊤
    • owl:Nothing (empty Class) ⊥
  • Definition of a Class

    :Denigma a owl:Class .


Tags: object, logic, class
Categories: Concept
Parent: Web Ontology Language
Children: Class Hierarchy, Closed Classes, Logical Class Constructor

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