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Re: UPDATE: initial message concerning syntax

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Thu, 20 Dec 2001 13:31:23 -0500
To: jos.deroo.jd@belgium.agfa.com
Cc: las@olin.edu, phayes@ai.uwf.edu, jjc@hplb.hpl.hp.com, Frank.van.Harmelen@cs.vu.nl, horrocks@cs.man.ac.uk, mdean@bbn.com, lynn.stein@olin.edu, www-webont-wg@w3.org, www-archive@w3.org, hendler@cs.umd.edu, connolly@w3.org
Message-Id: <20011220133123H.pfps@research.bell-labs.com>
One place to see the problem is in KIF.  The KIF definition
	http://logic.stanford.edu/kif/dpans.html
gives an example where a truth predicate can cause problems.

In the DAML+OIL area, if you require the presence of all syntax-like
constructs in the semantics you can easily end up with structures like

	:_x complementOf :_x .

in all interpretations.  Now consider whether :_x is an instance of :_x.

peter
Received on Thursday, 20 December 2001 13:32:50 GMT

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