- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 13 Nov 2002 16:09:33 +0000
- To: Dan Connolly <connolly@w3.org>
- Cc: Pat Hayes <phayes@ai.uwf.edu>, Jeremy Carroll <jjc@hplb.hpl.hp.com>, w3c-rdfcore-wg@w3.org
As Pat and I have gone through, there are two separate issues here:
1) Value spaces -- they're sets alright, as you would hope and expect,
and their members are simple things _in the world_ such as numbers,
strings, booleans, URIs.
2) The definition of certain aspects of schema-validity which appear
to appeal to values should actually be understood as appealing to
pairs of values and the type they are a member of. Thus the REC says
that (double)3 does not compare equal to (float)3, and
(string)my:aname does not compare equal to (anyURI)my:aname.
(2) is _only_ relevant to W3C XML Schema internal processes, and
shouldn't get in the way of RDF using the types and their value
spaces, in my opinion.
ht
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
W3C Fellow 1999--2002, part-time member of W3C Team
2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
Received on Wednesday, 13 November 2002 11:10:12 UTC