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From: =?iso-8859-15?Q?Yannick_Duch=EAne_=28Hibou57=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Lost in translation (with SPARK user rules)
Date: Thu, 27 May 2010 13:37:04 +0200
Organization: Ada At Home
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Date: 2010-05-27T13:37:04+02:00
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Le Thu, 27 May 2010 14:22:26 +0200, <stefan-lucks@see-the.signature> a  =

=E9crit:
> Wouldn't it be much simpler to use the proof checker, instead of the
> simplifier?
>
> Stefan
>
I don't like the checker, this is an external tool (... and not an handy=
  =

one), to me, SPARK is a language, not a tool. And further more, I really=
  =

prefer to write proofs in source, because this is what I am expecting of=
  =

such a thing as program proof is (I don't bother about adding a user rul=
es  =

file, although I would like a way to not need to copy it every where it =
is  =

needed and have it to be loaded all time automatically).

-- =

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.