XMLLiteral datatype: suggested text for errata document

I propose the following text to be included in the "Errata in RDF"
document [1] in the section concerned with RDF concepts [2]:


=======================
The following text, in the second bullet of the subheading "The value
space" of Section 5.1 of the RDF Concepts document:

    disjoint from the value space of any XML schema datatype [XML-SCHEMA2]

should be replaced by:

    disjoint from the value space of any other present or future
datatype (e.g., XML schema [XML-SCHEMA2]), with the exception of future
sub- or supertypes of this datatype

The reason for the replacement is that the definition was ambiguous: the
relationship between the value space of rdf:XMLLiteral and the value
spaces of datatypes not defined in the 2001 version of XML Schema (e.g.,
rdf:text) is unclear.  For example, one cannot infer from the
specifications whether there is overlap between the value spaces.
=======================



[1] http://www.w3.org/2001/sw/RDFCore/errata
[2] http://www.w3.org/TR/rdf-concepts
-- 
Jos de Bruijn            debruijn@inf.unibz.it
+390471016224         http://www.debruijn.net/
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