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Re: Literals in OWL

From: Bijan Parsia <bparsia@cs.man.ac.uk>
Date: Wed, 16 Jan 2008 21:29:42 +0000
Message-Id: <84A77E77-806B-492F-991D-7045A76B0D72@cs.man.ac.uk>
Cc: Owl Dev <public-owl-dev@w3.org>
To: Matt Williams <matthew.williams@cancer.org.uk>

For the syntax (and some discussion) in abstract syntax:
	http://www.w3.org/TR/owl-semantics/syntax.html
e.g.,:
	"The built-in RDF datatype, rdf:XMLLiteral, is also an OWL built-in  
datatype."

See:
	http://www.w3.org/TR/owl-semantics/direct.html#3.1
e.g.,:
	"Definition: An OWL vocabulary V consists of a set of literals VL  
and seven sets of URI references...VD, the datatype names of a  
vocabulary, contains the URI references for the built-in OWL  
datatypes and rdfs:Literal.
Definition: As in RDF, a datatype d is characterized by a lexical  
space, L(d), which is a set of Unicode strings; a value space, V(d);  
and a total mapping L2V(d) from the lexical space to the value space.

Definition: A datatype map D is a partial mapping from URI references  
to datatypes that maps xsd:string and xsd:integer to the appropriate  
XML Schema datatypes.

A datatype map may contain datatypes for the other built-in OWL  
datatypes. It may also contain other datatypes, but there is no  
provision in the OWL syntax for conveying what these datatypes are."

etc.

Cheers,
Bijan.
Received on Wednesday, 16 January 2008 21:27:51 GMT

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