- From: Jan Grant <Jan.Grant@bristol.ac.uk>
- Date: Tue, 12 Sep 2000 15:23:10 +0100 (BST)
- To: "McBride, Brian" <bwm@hplb.hpl.hp.com>
- cc: "RDF Interest (E-mail)" <www-rdf-interest@w3.org>
On Tue, 12 Sep 2000, McBride, Brian wrote: > > > 6. There is a mapping called Reification which a maps > > > each member s of Statements onto a unique member r > > > of Resources. My problem with this statement stems from my confusing 'uri' with 'resource'. I've had the engineering problem knocking around in the back of my head: how does one go about constructing an RDF database (or "model" with a small "m") that relates to the proposed formal axioms we're discussing? For that purpose, I've been ignoring (deliberately) the problem of what a URI is: a symbol that refers to some referent. So all considerations of identity I've been 'punting': asking "are these URIs identical?", not "are the resources which these URIs refer to identical?" (deliberately: the latter is a harder question). This is why I don't like point 6 above; because I was (implicitly) reading it as "there is a mapping called Reification which maps each member, s, of Statements onto a unique uri, r" and I was concerned about the implications this had. Dan just pointed me at http://www.bestweb.net/~sowa/peirce/ontometa.htm and I've fallen into the trap outlined in the first paragraph :-( I'm still not sure what the right thing to do is. I'm not even sure if I should be saying "the sequence* of URLs (http://one, http://two, http://three)" instead of "a sequence* of URLs (http://one, http://two, http://three)" Sigh. - confused in Bristol * or bag, etc. -- jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ Tel +44(0)117 9287163 Fax +44 (0)117 9287112 RFC822 jan.grant@bris.ac.uk Unfortunately, I have a very good idea how fast my keys are moving.
Received on Tuesday, 12 September 2000 10:23:13 UTC