- From: Nathan <nathan@webr3.org>
- Date: Tue, 06 Jul 2010 22:31:50 +0100
- To: Antoine Zimmermann <antoine.zimmermann@deri.org>
- CC: Pat Hayes <phayes@ihmc.us>, Toby Inkster <tai@g5n.co.uk>, Linked Data community <public-lod@w3.org>, Semantic Web <semantic-web@w3.org>
Thanks for the clarification Antione, I'll take one of those generalised rdf's to go when available, can I pre order? Best, Nathan Antoine Zimmermann wrote: > So to clarify a bit: > > A serialisation is just a way to write down an RDF document in a > computer. A serialisation of RDF must respect the abstract RDF syntax, > which forbids literals in subject position. If the serialisation allows > literals as subject, it is not a serialisation of RDF but it serialises > a more general language (e.g., N3). > Then comes the semantics. The semantics does not allow or disallow > anything, it just provides a notion of interpretation of an RDF > vocabulary, and a notion of satisfaction of an RDF document (which must > *not* have a literal in subject position). However, what we mean by > saying, informally, that "the semantics allows literals in subject" is > that the very same semantics could be applied to generalised RDF. > > So, strictly speaking, no, the semantics does not allow you to put > literals in subject, but it allows you to straightforwardly define the > possible meaning of a generalised triple. > > > AZ > > Le 06/07/2010 22:02, Nathan a écrit : >> Pat Hayes wrote: >>> However, before I lose any more of my SW friends, let me say at once >>> that I am NOT arguing for this change to RDF. >> >> so after hundreds of emails, I have to ask - what (the hell) defines RDF? >> >> I've read that 'The RDF Semantics as stated works fine with triples >> which have any kind of syntactic node in any position in any >> combination.' >> >> Do the 'RDF Semantics' define RDF? or do the serializations? >> >> simply - does RDF support literal subjects or not - I've read the >> aforementioned sentence to read 'RDF Semantics support literal subjects' >> or should I be reading 'RDF Semantics could support literal subjects' or >> 'does support literal subjects' or? >> >> Just seeking a definitive bit of clarity on 1: what defines RDF, 2: what >> is *currently* supported in that definition. >> >> Preferably a serialization unspecific answer :) >> >> Best & TIA, >> >> Nathan >> > > >
Received on Tuesday, 6 July 2010 21:32:44 UTC