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Re: [UCR] RIF needs different reasoning methods

From: Francois Bry <bry@ifi.lmu.de>
Date: Mon, 13 Mar 2006 15:54:23 +0100
Message-ID: <4415879F.1010300@ifi.lmu.de>
To: Ian Horrocks <horrocks@cs.man.ac.uk>
CC: RIF WG <public-rif-wg@w3.org>

Ian Horrocks wrote:
> On 12 Mar 2006, at 23:09, Gerd Wagner wrote:
>> Ian Horrocks wrote:
>>> If the RIF supports rules with different meanings (i.e.,
>>> where different behaviour of the consuming system is
>>> expected), then clearly
>>> they would need to be distinguished. I don't see anyone
>>> disagreeing about that.
>> OK, then we agree on Francois' proposal to mark/annotate
>> the distinction between these different types of rules
> The trouble is that this isn't what either Francois  or I said:
> Francois' proposal explicitly referred to distinguishing the reasoning
> method to be applied to rules of the same type (or at least having the
> same meaning);

Well, deduction rules and integrity constraints calkl for different
reasonin g methods, while they can be expressed in terms of the same
model theory.

>> (I think this was the main point of the debate, and not
>> the issue of efficient proof theories).
> I think that we should wait for Francois to clarify his intended
> meaning, which is not obviously the same as yours.

I think, Gerd and I are very much on the same line of thoughts. Even
Though we might use different phrasings.

Received on Monday, 13 March 2006 14:54:28 UTC

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