- From: Jos De_Roo <jos.deroo@agfa.com>
- Date: Sun, 8 Jun 2003 14:33:41 +0200
- To: pfps@research.bell-labs.com
- Cc: phayes@ai.uwf.edu, w3c-rdfcore-wg@w3.org
What about
{: rdfs:fyi :rdfs12a.
?Q rdfs:domain ?Y.
?P rdfs:domain ?X.
?P rdf:type :rdfcProperty.
?P rdfs:subPropertyOf ?Q} =>
{?X rdfs:subClassOf ?Y}.
{: rdfs:fyi :rdfs12b.
?Q rdfs:range ?Y.
?P rdfs:range ?X.
?P rdf:type :rdfcProperty.
?P rdfs:subPropertyOf ?Q} =>
{?X rdfs:subClassOf ?Y}.
while having
rdfs:subClassOf rdf:type :rdfcProperty.
rdfs:subPropertyOf rdf:type :rdfcProperty.
rdf:type rdf:type :rdfcProperty.
??
--
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
"Peter F.
Patel-Schneider" To: Jos De_Roo/AMDUS/MOR/Agfa-NV/BE/BAYER@AGFA
<pfps@research.bell cc: phayes@ai.uwf.edu, w3c-rdfcore-wg@w3.org
-labs.com> Subject: Re: incompleteness in RDFS closure rules
2003-06-07 11:26 PM
From: "Jos De_Roo" <jos.deroo@agfa.com>
Subject: incompleteness in RDFS closure rules
Date: Sat, 7 Jun 2003 14:52:16 +0200
> Pat,
>
> What about generalizing rdfs12 to
>
> {: rdfs:fyi :rdfs12a. ?Q rdfs:domain ?Y. ?P rdfs:domain ?X.
> ?P rdfs:subPropertyOf ?Q} => {?X rdfs:subClassOf ?Y}.
>
> {: rdfs:fyi :rdfs12b. ?Q rdfs:range ?Y. ?P rdfs:range ?X.
> ?P rdfs:subPropertyOf ?Q} => {?X rdfs:subClassOf ?Y}.
These are not valid rules.
> Then the cases that Peter brought up are following
> (I've tested that and the other RDFS and OWL are
> in status quo, be it with some more steps).
peter
>
> --
> Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
> ----- Forwarded by Jos De_Roo/AMDUS/MOR/Agfa-NV/BE/BAYER on 2003-06-07
> 02:36 PM -----
>
> "Peter F.
> Patel-Schneider" To:
www-rdf-comments@w3.org
> <pfps@research.bell-l cc:
> abs.com> Subject:
incompleteness in RDFS closure rules
> Sent by:
> www-rdf-comments-requ
> est@w3.org
>
>
> 2003-06-07 06:17 AM
>
>
>
>
>
>
>
>
> rdfs:subClassOf rdfs:subPropertyOf xxx .
> xxx rdfs:domain yyy .
>
> RDFS-entails
>
> rdfs:Class rdfs:subClassOf yyy .
>
> but this does not come out of the RDFS closure rules.
>
>
>
> rdfs:subClassOf rdfs:subPropertyOf xxx .
> xxx rdfs:range yyy .
>
> RDFS-entails
>
> rdfs:Class rdfs:subClassOf yyy .
>
> but this does not come out of the RDFS closure rules.
>
>
>
> rdfs:subPropertyOf rdfs:subPropertyOf xxx .
> xxx rdfs:domain yyy .
>
> RDFS-entails
>
> rdf:Property rdfs:subClassOf yyy .
>
> but this does not come out of the RDFS closure rules.
>
>
>
> rdfs:subPropertyOf rdfs:subPropertyOf xxx .
> xxx rdfs:range yyy .
>
> RDFS-entails
>
> rdf:Property rdfs:subClassOf yyy .
>
> but this does not come out of the RDFS closure rules.
>
>
>
>
Received on Sunday, 8 June 2003 12:23:58 UTC