Created on March 11, 2013, 4:29 p.m. by Hevok
& updated by
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 .
Web Ontology Language
Logical Class Constructor
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