Re: A possible error in Prov-O RDF

Kevin,

which file are you looking at? The turtle version of Prov-O is at

http://www.w3.org/ns/prov-o.ttl <http://www.w3.org/ns/prov-o.ttl>

which contains only the (owl:Thing rdf:type owl:Class) triple.

Regardless… both triples are actually correct, albeit largely unnecessary. They are, afaik, part of the axiomatic statements of OWL2 and, as such, having them in this TTL file does not add any knew knowledge. These types of axioms are often added by conversion tools or ontology editors and, I presume, this is what you are looking at.

(Tim Lebo might know more of the details.)

Cheers

Ivan

> On 11 Oct 2017, at 21:23, Tyson, Kevin <Kevin.Tyson@jpmorgan.com <mailto:Kevin.Tyson@jpmorgan.com>> wrote:
> 
> Greetings,
> On line 27 of the TTL formatted version of the Prov-O RDF I found the following line:
> owl:Thing  rdf:type owl:Class ;  rdfs:subClassOf owl:Thing ;.
> I believe this is an error.  If it isn’t an explanatory note describing its purpose would be helpful.
> Thanks in advance,
> Kevin
> 
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----
Ivan Herman, W3C
Publishing@W3C Technical Lead
Home: http://www.w3.org/People/Ivan/ <http://www.w3.org/People/Ivan/>
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