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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Quantified Expressions: "some"
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Date: Wed, 17 Nov 2010 18:28:36 +0100
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Date: 2010-11-17T18:28:35+01:00
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On Wed, 17 Nov 2010 17:14:27 +0100, J-P. Rosen wrote:

> Le 17/11/2010 15:20, Dmitry A. Kazakov a �crit :
>> On Wed, 17 Nov 2010 15:16:34 +0100, Georg Bauhaus wrote:
>> 
>>> On 17.11.10 14:38, Dmitry A. Kazakov wrote:
>>>
>>>> I have no idea what the proposal would do with:
>>>>
>>>>    ( for all X in 1 | 3..5 | F'Range | P(X) )
>>>
>>> I think it will refer to that extended membership test which
>>> adds a pair of parens:
>>>
>>>  ( for all X in (1 | 3..5 | F'Range) | P(X) )
>> 
>> Awful.
>> 
> Actually, It's been decided recently to change "|" to "=>", so it will read:
> ( for all X in 1 | 3..5 | F'Range => P(X) )

Not much better: "=>" means "implies." P is neither implied nor selected.
Actually it is antecedent, on the left side. IF kind of X, such that P(X)
AND X in the set, THEN something [ ELSE something ].

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de