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ISSUE-91

From: Chris Welty <cawelty@gmail.com>
Date: Fri, 13 Mar 2009 14:28:56 -0400
Message-ID: <49BAA5E8.9080008@gmail.com>
To: "Public-Rif-Wg (E-mail)" <public-rif-wg@w3.org>

At the F2F12, there was discussion of "bounded quantifiers" (e.g. Forall (x in 
C) ...) in PRD, and the suggestion was made to put them in Core, and thus into 
BLD as well.

This would require re-issuing LC for BLD.


It seems to me this could be done simply as syntactic sugar, ie

Forall (x in C) Q :- P

is syntactic sugar for

Forall (x) Q :- P AND C(x)

and just allows an implementor to more easily recognize the restriction on the 
quantification (this is a common source of optimization in implementations).

Anyway, let's have a brief discussion about the pros/cons on Tuesday.

-Chris

-- 
Dr. Christopher A. Welty                    IBM Watson Research Center
+1.914.784.7055                             19 Skyline Dr.
cawelty@gmail.com                           Hawthorne, NY 10532
http://www.research.ibm.com/people/w/welty
Received on Friday, 13 March 2009 18:29:53 GMT

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