Re: Requirements for a possible "RDF 2.0"

Dan Brickley wrote:
>
> How far can we go by overloading the existing datatyping mechanism?
> ie. decorate literals with URIs that stand for particular encodings of
> particular units?
>   

I think the answer to this question rests on the meaning of = in
   8km = 5miles

(pretending that the arithmetic is precise and correct)
Conceptually I think we could have units:kilometer being a datatype 
whose value space is distances and whose lexical space is the same as 
xsd:decimal, and its value space would (modulo rounding) be the same as 
units:mile but disjoint from units:squareMeter ...

However I defer to others ...

Jeremy