- From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
- Date: Sun, 30 Mar 2003 12:43:12 -0500 (EST)
- To: yzqu@seu.edu.cn
- Cc: www-rdf-logic@w3.org
From: "Yuzhong Qu" <yzqu@seu.edu.cn> Subject: The domain value of a owl:subClassOf statement (OWL DL) Date: Sun, 30 Mar 2003 22:19:15 +0800 > 8.2 OWL DL [ In OWL Reference] says: > > a.. In OWL DL anonymous classes are only allowed to occur in the following places in class axioms: > a.. within the range value of a rdfs:subclass, owl:equivalentClass or owl:disjointWith statement > b.. as the domain value of a owl:equivalentClass or owl:disjointWith statement > This implies that the anonymous class cannot be the domain value of a owl:subClassOf statement. > > > But, 2.3.2.1. OWL DL Class Axioms [ In OWL Abstract Syntax and Semantics] says: > axiom ::= 'DisjointClasses(' description { description } ')' > | 'EquivalentClasses(' description { description } ')' > | 'SubClassOf(' description description ')' > This means the anonymous class could be the domain value of a owl:subClassOf statement? Yes. > Does the anonymous class is allowed to occur as domain value of a owl:subClassOf statement in OWL DL? It should be. > Yuzhong Qu peter
Received on Sunday, 30 March 2003 12:44:52 UTC