Dear Daniel, Hopefully you will find an answer to our question in the last "Note on supposed "transitiveness inheritance"" in the section of the SKOS Primer on transitive hierarchies [1]. This topic was indeed raised quite many times, since that's a point of RDFS sub-property link semantics which is far from trivial... Best, Antoine [1] http://www.w3.org/TR/2009/WD-skos-primer-20090317/#sectransitivebroader > Regarding the SKOS reference at > http://www.w3.org/TR/2009/CR-skos-reference-20090317/: > > Section 8.1 says: > > ... the propert[y] skos:broader ... [is] not declared as [a] transitive > propert[y]. > > > However, section 8.3 says: > > skos:broader is a sub-property of skos:broaderTransitive > > and: > > skos:broaderTransitive ... [is an] instance[] of owl:TransitiveProperty. > > Are subproperties of a transitive property necessarily transitive? > (That is, > in math or in OWL, if a property is transitive, does that imply that any > subproperty of that property is also transitive?) (I'm more familiar with > class/subclass relationships than property/subproperty relationships.) > > > If the answer is yes, is there a contradiction between sections 8.3 and > 8.1? > > > Daniel > -- > (Plain text sometimes corrupted to HTML "courtesy" of Microsoft > Exchange.) [F] > >Received on Tuesday, 7 April 2009 22:03:35 GMT
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