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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
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Newsgroups: comp.lang.ada
Subject: Re: Lost in translation (with SPARK user rules)
Date: Thu, 27 May 2010 14:42:45 +0200
Organization: Ada At Home
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Date: 2010-05-27T14:42:45+02:00
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Le Thu, 27 May 2010 13:41:08 +0200, Phil Thornley  =

<phil.jpthornley@googlemail.com> a =C3=A9crit:
> It's explained in the Simplifier manual section 7.2.3:
> goal(integer(X)) requires X to *be* an integer, not just of integer
> type (so goal(integer(42)) succeeds).
Thanks for the reference (may be I tend to become lazy when I am facing =
 =

scattered documentations, oops)

-- =

There is even better than a pragma Assert: a SPARK --# check.
--# check C and WhoKnowWhat and YouKnowWho;
--# assert Ada;
--  i.e. forget about previous premises which leads to conclusion
--  and start with new conclusion as premise.