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Re: further horst-01 test case

From: Graham Klyne <gk@ninebynine.org>
Date: Thu, 17 Jul 2003 21:34:49 +0100
Message-Id: <>
To: Jeremy Carroll <jjc@hplb.hpl.hp.com>, rdf core <w3c-rdfcore-wg@w3.org>

Do I understand?...

eq:p has empty range, hence has empty IEXT, and is therefore a subproperty 
(not necessarily proper) of any other property if subproperty is treated as 

If so, it looks OK to me.


At 17:56 17/07/03 +0100, Jeremy Carroll wrote:

>I believe we agreed on if semantics for subPropertyOf
>Does the following test case capture the lack of "only if"
>eg:p rdfs:range xsd:integer .
>eg:p rdfs:range xsd:string .
>eg:q rdf:type rdf:Property .
>does not entail (even with knowledge of xsd:integer and xsd:string)
>eg:p rdfs:subPropertyOf eg:q .
>(but does in OWL Full).

Graham Klyne
PGP: 0FAA 69FF C083 000B A2E9  A131 01B9 1C7A DBCA CB5E
Received on Thursday, 17 July 2003 16:37:50 UTC

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