RE: A possible error in Prov-O RDF

Agreed.  It is not wrong.  Its presence causes a visual incongruity in some of the tools we use to display this information to non-technical users.  Where I went wrong was enabling its display.

Kevin P. Tyson | Executive Director | JPMorgan Chase | Office of Legal Obligations
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From: Ivan Herman [mailto:ivan@w3.org]
Sent: Thursday, October 12, 2017 8:58 AM
To: Tyson, Kevin
Cc: public-prov-comments@w3.org; lebot@rpi.edu
Subject: Re: A possible error in Prov-O RDF


On 12 Oct 2017, at 14:55, Tyson, Kevin <Kevin.Tyson@jpmorgan.com<mailto:Kevin.Tyson@jpmorgan.com>> wrote:

Ivan,
You’re right.  One of my tools introduced this triple.  I’ll back track through the process and find where I went wrong.

But it is not _wrong_! It is just superfluous, it can be safely ignored (and is ignored by, say, OWL reasoners that already know that information out of the box…)

Cheers

Ivan



Thanks for the info,
Kevin

Kevin P. Tyson | Executive Director | JPMorgan Chase | Office of Legal Obligations
383 Madison Ave, Floor 25 NY, NY, 10179, United States, Mail Code: NY1-M114
Desk: +1-212-622-0912 | Cell: +1-914-548-0411 | Fax: +1-917-937-5029
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From: Ivan Herman [mailto:ivan@w3.org<mailto:ivan@w3.org>]
Sent: Thursday, October 12, 2017 3:55 AM
To: Tyson, Kevin
Cc: public-prov-comments@w3.org<mailto:public-prov-comments@w3.org>; lebot@rpi.edu<mailto:lebot@rpi.edu>
Subject: 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


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

Kevin P. Tyson | Executive Director | JPMorgan Chase | Office of Legal Obligations
383 Madison Ave, Floor 25 NY, NY, 10179, United States, Mail Code: NY1-M114
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----
Ivan Herman, W3C
Publishing@W3C Technical Lead
Home: http://www.w3.org/People/Ivan/

mobile: +31-641044153
ORCID ID: http://orcid.org/0000-0003-0782-2704


This message is confidential and subject to terms at: http://www.jpmorgan.com/emaildisclaimer<http://www.jpmorgan.com/emaildisclaimer> including on confidentiality, legal privilege, viruses and monitoring of electronic messages. If you are not the intended recipient, please delete this message and notify the sender immediately. Any unauthorized use is strictly prohibited.


----
Ivan Herman, W3C
Publishing@W3C Technical Lead
Home: http://www.w3.org/People/Ivan/

mobile: +31-641044153
ORCID ID: http://orcid.org/0000-0003-0782-2704



This message is confidential and subject to terms at: http://www.jpmorgan.com/emaildisclaimer including on confidentiality, legal privilege, viruses and monitoring of electronic messages. If you are not the intended recipient, please delete this message and notify the sender immediately. Any unauthorized use is strictly prohibited.