RE: Cutting the Patrician datatype knot

From: Peter F. Patel-Schneider (
Date: 11/24/01

Subject: RE: Cutting the Patrician datatype knot
Date: Fri, 23 Nov 2001 20:57:49 +0200

> If the data type does not define a lexical space, then
> no mechanism is going to work. Either there's a defined
> mapping from lexical form to value or there isn't. It
> is therefore enough to identify that pairing of lexical
> form (literal) to data type (URI) in order to denote the
> value.

The problem is not that the datatypes don't meet your conditions above, the
problem occurs when two datatypes share some data values, but disagree on
how to to the lexical-to-value mapping.  If the typing comes from RDF(S),
then it may be the case that a literal gets these two datatypes.  Then the
value for that literal is ambiguous.


> Cheers,
> Patrick


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