- From: Richard H. McCullough <rhm@cdepot.net>
- Date: Mon, 4 Aug 2003 20:56:07 -0700
- To: "Richard H. McCullough" <rhm@cdepot.net>, "Guus Schreiber" <schreiber@cs.vu.nl>
- Cc: <public-webont-comments@w3.org>
I was just browsing through your response again, and noticed something that bothered me. You suggest that only "individuals" are owl:Things, and that "literals" are not owl:Things. It was my understanding that owl:Thing is the universal class which includes everything that exists. Since literals exist, they must be owl:Things. Dick McCullough knowledge := man do identify od existent done; knowledge haspart proposition list; ----- Original Message ----- From: "Richard H. McCullough" <rhm@cdepot.net> To: "Guus Schreiber" <schreiber@cs.vu.nl> Cc: <public-webont-comments@w3.org> Sent: Thursday, July 17, 2003 12:05 PM Subject: Re: unspecified domain,range in App. C of OWL Language Reference 31 March 2003 > This response is satisfactory. > Thanks for the explanation. > > Dick McCullough > knowledge := man do identify od existent done; > knowledge haspart proposition list; > > ----- Original Message ----- > From: "Guus Schreiber" <schreiber@cs.vu.nl> > To: "Richard H. McCullough" <rhm@cdepot.net> > Cc: <public-webont-comments@w3.org> > Sent: Tuesday, July 15, 2003 1:56 PM > Subject: Re: unspecified domain,range in App. C of OWL Language Reference 31 > March 2003 > > > > Unspecified domain,range in App. C of OWL Language Reference > > > http://lists.w3.org/Archives/Public/public-webont-comments/2003May/0044.html > > > > > From: Richard H. McCullough (rhm@cdepot.net) > > > Date: Fri, May 09 2003 > > > > > > There are several blanks in the table. > > > Shouldn't any "missing" domain,range > > > be replaced by owl:Thing? > > > > Richard, > > > > Thanks for your comment and sorry for the late reply. > > The domain/range of some of the built-in OWL > > properties is left open on purpose: > > > > [[ > > owl:hasValue domain: owl:Restriction range: > > ]] > > > > The object of owl:hasValue can be either an individual or a literal, > > not just an individual (as a range of owl:Thing would imply). See > > sec. 3.1.2.1.3 of Reference: > > > > [[ > > The value constraint owl:hasValue is a built-in OWL property that links > > a restriction class to a value V, which can be either an individual or > > a data value. > > ]] > > > > [[ > > owl:versionInfo domain: range: > > ]] > > > > The subject of owl:versionInfo is not restricted to a particular > > type, see Sec. 7.4.1: > > > > [[ > > Although this property is typically used to make statements about > > ontologies, it may be applied to any OWL construct. > > ]] > > > > The object of owl:versionInfo is often, but not necessarily, a string: > > > > [[ > > An owl:versionInfo statement generally has as its object a string .... > > ]] > > > > Please respond, cc-ing public-webont-comments@w3.org, whether this > > response is satisfactory. > > > > Regards, > > Guus Schreiber > > -- > > 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/ > > > > > > >
Received on Monday, 4 August 2003 23:56:40 UTC