- From: Nobel Ferun <manbols@lycos.com>
- Date: Sun, 12 Dec 2004 05:20:51 -0500
- To: www-rdf-comments@w3.org
It might be worth remarking that to have rdfs:Resouce as a domain or range is never an error, since in RDFS domains and ranges can be conjoined. It is more like a kind of resignation: one is saying that the subject or object of the property may be anything whatsoever, unless of course further information is supplied which restricts them in some other way or for some other reason. One can see this by looking at the RDFS inference rules (http://www.w3.org/TR/2004/REC-rdf-mt-20040210/#RDFSRules), where rdfs3 allows you to conclude in this case that the type of the object of any assertion of rdf:Property must be rdfs:Resource; but one knew that already, from rdfs4b. So this 'vacuous' range only provides some redundant information. -- _______________________________________________ Find what you are looking for with the Lycos Yellow Pages http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default.asp?SRC=lycos10
Received on Sunday, 12 December 2004 11:41:58 UTC