Re: Question re: URIs from John Manko on 2003-09-08 (uri@w3.org from September 2003)

From: John Manko <xerid@adelphia.net>
Date: Mon, 08 Sep 2003 00:31:22 -0400
To: Larry Masinter <LMM@acm.org>
Cc: 'Sandro Hawke' <sandro@w3.org>, www-talk@w3.org, uri@w3.org
Message-ID: <3F5C061A.1050009@adelphia.net>

 From a Many-to-One set, any element is equal to another element in the 
same set.  So, you need to define the conditions on the set.

Larry Masinter wrote:

>Re: Many-to-One vs  One-to-One
>
>I think the question is ill-formed; it assumes that
>the space of resources has a well defined equality
>relationship.
>
>Before you can ask if there are two URIs U1 and U2 such
>that U1 != U2 but 
>ResourceIdentifiedBy(U1) == ResourceIdentifiedBy(U2)
>
>you have to know what '==' means for resources. But
>there is no well-defined equality for resources, so
>the question doesn't make sense.
>
>
>many-to-one and one-to-one only apply to spaces with
>well-defined (and, for that matter, unique) equality
>relationships.
>
>Larry
>
>
>  
>

Received on Monday, 8 September 2003 00:31:28 UTC