- From: Christopher Welty <welty@us.ibm.com>
- Date: Thu, 10 Jul 2003 14:49:27 -0400
- To: Christopher Welty <welty@us.ibm.com>
- Cc: www-webont-wg@w3.org, www-webont-wg-request@w3.org
- Message-ID: <OF7C92DBA2.70B8E27E-ON85256D5F.00559AAF-85256D5F.00671231@us.ibm.com>
I realized my example wasn't quite right, it requires a minCardinality - but still I can't seem to prove the entailments below from the semantics. GIVEN: <owl:class rdf:ID="ManufacturedThing" /> <owl:class rdf:ID="NaturalThing" /> <owl:ObjectProperty rdf:ID="madeFrom"> <rdfs:domain rdf:resource="#ManufacturedThing" /> <rdfs:range rdf:resource="#NaturalThing" /> </owl:ObjectProperty> DOES THIS: <owl:Class rdf:ID=?Wine"> <rdfs:subClassOf> <owl:Restriction> <owl:onProperty rdf:resource="#madeFrom"/> <owl:allValuesFrom rdf:resource=?#Grape? /> </owl:Restriction> </rdfs:subClassOf> <rdfs:subClassOf> <owl:Restriction> <owl:onProperty rdf:resource="#madeFrom"/> <owl:minCardinality rdf:datatype="&xsd;nonNegativeInteger">1</owl:minCardinality> </owl:Restriction> </rdfs:subClassOf> </owl:Class> ENTAIL THIS?: <owl:class rdf:resource="#Wine"> <rdfs:subclass rdf:resource="#ManufacturedThing" /> </owl:class> <owl:class rdf:resource="#Grape"> <rdfs:subclass rdfs:resource="#NaturalThing" /> </owl:class> Dr. Christopher A. Welty, Knowledge Structures Group IBM Watson Research Center, 19 Skyline Dr., Hawthorne, NY 10532 USA Voice: +1 914.784.7055, IBM T/L: 863.7055, Fax: +1 914.784.6912 Email: welty@us.ibm.com, Web: http://www.research.ibm.com/people/w/welty/ Christopher Welty/Watson/IBM@IBMUS Sent by: www-webont-wg-request@w3.org 07/09/2003 04:39 PM To: www-webont-wg@w3.org cc: Subject: examples entailment questions GIVEN: <owl:class rdf:ID="ManufacturedThing" /> <owl:class rdf:ID="NaturalThing" /> <owl:ObjectProperty rdf:ID="madeFrom"> <rdfs:domain rdf:resource="#ManufacturedThing" /> <rdfs:range rdf:resource="#NaturalThing" /> </owl:ObjectProperty> DOES THIS: <owl:Class rdf:ID=?Wine"> <rdfs:subClassOf> <owl:Restriction> <owl:onProperty rdf:resource="#madeFrom"/> <owl:allValuesFrom rdf:resource=?#Grape? /> </owl:Restriction> </rdfs:subClassOf> </owl:Class> ENTAIL THIS?: <owl:class rdf:resource="#Wine"> <rdfs:subclass rdf:resource="#ManufacturedThing" /> </owl:class> <owl:class rdf:resource="#Grape"> <rdfs:subclass rdfs:resource="#NaturalThing" /> </owl:class> Certainly this holds in the interpretation. -Chris Dr. Christopher A. Welty, Knowledge Structures Group IBM Watson Research Center, 19 Skyline Dr., Hawthorne, NY 10532 USA Voice: +1 914.784.7055, IBM T/L: 863.7055, Fax: +1 914.784.6912 Email: welty@us.ibm.com, Web: http://www.research.ibm.com/people/w/welty/
Received on Thursday, 10 July 2003 14:49:39 UTC