- From: Guus Schreiber <schreiber@cs.vu.nl>
- Date: Mon, 12 May 2003 12:32:56 +0200
- To: "Richard H. McCullough" <rhm@cdepot.net>
- CC: webont-comments at W3C <public-webont-comments@w3.org>
Richard H. McCullough wrote: > Appendix B declares two Classes (Restriction, Deprecated Class) > to be subClasses of Class. > > <rdfs:Class rdf:ID="Restriction"> > <rdfs:label>Restriction</rdfs:label> > <rdfs:subClassOf rdf:resource="#Class"/> > </rdfs:Class> > <rdfs:Class rdf:ID="DeprecatedClass"> > <rdfs:label>DeprecatedClass</rdfs:label> > <rdfs:subClassOf rdf:resource="&rdfs;Class"/> > </rdfs:Class> > > I think this is an error. > If it's not an error, what is the explanation? Thanks for your comment. We do not think it is an error. These are built-in metaclasses, the instances of which are classes. Thus, owl:Restriction and owl:DeprecatedClass are defined as a subclass of the general metaclass rdfs:Class (owl:Class is a subclass of rdfs:Class). Please let us know whether this response is satisfactory. Guus Schreiber > ============ > Dick McCullough > knowledge := man do identify od existent done; > knowledge haspart proposition list; > > -- NOTE: new affiliation per April 1, 2003 Free University Amsterdam, Computer Science De Boelelaan 1081a, 1081 HV Amsterdam, The Netherlands Tel: +31 20 444 7739/7718 E-mail: schreiber@cs.vu.nl Home page: http://www.cs.vu.nl/~guus/ [under construction]
Received on Monday, 12 May 2003 06:33:04 UTC