- From: Brian McBride <bwm@hplb.hpl.hp.com>
- Date: 28 Jul 2003 14:05:51 +0100
- To: Jos De_Roo <jos.deroo@agfa.com>
- Cc: "Dan Connolly <connolly" <connolly@w3.org>, rdf core <w3c-rdfcore-wg@w3.org>
On Fri, 2003-07-25 at 18:16, Jos De_Roo wrote: > [...] > > > ** Failures - will not fix: > > > PositiveEntailmentTest rdfms-seq-representation/Manifest.rdf#test004 - > FAIL > > > PositiveEntailmentTest rdfms-seq-representation/Manifest.rdf#test002 - > FAIL > > > These two tests assert that the empty document entails various > properties > > > of _1. By my reading of the specs this is not correct, only mentioned > > > > container membership properties should result in such entailments and > > > there are no such mentions in the empty document. > > > > That's my understanding too. I haven't double-checked the text. > > I recommend changing the test. > > I was looking in the table of the "RDFS axiomatic triples" at > http://www.ihmc.us/users/phayes/RDF_Semant_Edit_Weak.html#rdfs_interp > and found that > rdf:_1 rdf:type rdfs:ContainerMembershipProperty . > is an RDFS axiomatic triple (following from the empty KB) > so test002 - OK No. >From the semantics doc: [[ The subset of rdfV consisting of the first 3 items in the above list, {rdf:type rdf:Property rdf:XMLLiteral} is called the core RDF vocabulary, crdfV. ]] [[ An rdfs-interpretation of V is an rdf-interpretation I of V union crdfV union rdfsV which satisfies the following semantic conditions and all the triples in the subsequent table, called the RDFS axiomatic triples, which contain only names from V union crdfV union rdfsV. ]] rdf:_1 is not a member of V, crdfV or rdfsV, so the entailment does not hold - which is cool, cos it keeps things finite. Brian > > Given this, rdfs12 is applicable > > { > <http://www.agfa.com/w3c/euler/rdfs-rules#rdfs12>. > {[ iw:Variable "?X"] = <http://www.w3.org/1999/02/22-rdf-syntax-ns#_1>. > [ iw:Variable "?X"] a rdfs:ContainerMembershipProperty} => > {<http://www.w3.org/1999/02/22-rdf-syntax-ns#_1> a > rdfs:ContainerMembershipProperty}} => > {<http://www.w3.org/1999/02/22-rdf-syntax-ns#_1> > <http://www.w3.org/2000/01/rdf-schema#subPropertyOf> > <http://www.w3.org/2000/01/rdf-schema#member>}. > > so test004 is also OK > > (at least we get those results) > > [oops... have to run, ] > > -- > Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/ >
Received on Monday, 28 July 2003 09:06:52 UTC