- From: Bijan Parsia <bparsia@isr.umd.edu>
- Date: Tue, 13 Sep 2005 02:20:34 -0400 (EDT)
- To: Matt Williams <matthew.williams@cancer.org.uk>, www-rdf-logic@w3.org
---- Original message ---- >Date: Mon, 12 Sep 2005 20:25:20 +0100 >From: Matt Williams <matthew.williams@cancer.org.uk> >Subject: Role Negation in OWL >To: www-rdf-logic@w3.org > > >Dear List, > >Rather a basic question, and it may have been answered, but I couldn't >find anything in the archives. > >I'm wondering if I can say "not R.C" (where R and C are a role and class >respectively). I'm trying to express a concept such as "doesn't have >treatment with tamoxifen", so I'm not really looking for the complement >of R, just a way of expressing that the relationship R.C won't hold for >a particular individual. How about making that individual an instance of allValuesFrom complementOf C onProperty R? Cheers, Bijan.
Received on Tuesday, 13 September 2005 06:20:55 UTC