From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM
	autolearn=ham autolearn_force=no version=3.4.4
X-Google-Thread: 103376,58ae2be75e131d99,start
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,UTF8
Received: by 10.68.135.231 with SMTP id pv7mr16463039pbb.8.1329794690936;
        Mon, 20 Feb 2012 19:24:50 -0800 (PST)
Path: 
 wr5ni49781pbc.0!nntp.google.com!news2.google.com!news.glorb.com!feeder.erje.net!weretis.net!feeder1.news.weretis.net!usenet.pasdenom.info!aioe.org!.POSTED!not-for-mail
From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
 =?utf-8?Q?=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Beside of SPARK: how do you compare Alt-Ergo and Coq?
Date: Tue, 21 Feb 2012 04:24:48 +0100
Organization: Ada @ Home
Message-ID: <op.v90efmcbule2fv@douda-yannick>
NNTP-Posting-Host: yeF0Lea/2CbLTfYz+tU+1w.user.speranza.aioe.org
Mime-Version: 1.0
X-Complaints-To: abuse@aioe.org
User-Agent: Opera Mail/11.61 (Linux)
X-Notice: Filtered by postfilter v. 0.8.2
Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes
Content-Transfer-Encoding: Quoted-Printable
Date: 2012-02-21T04:24:48+01:00
List-Id: <comp.lang.ada>

If I'm wrong with this question here, just tell me. Many people here hav=
e  =

a lot of interest in such topics, and I though this may be another (agai=
n)  =

opportunity to link both to Ada. At least AdaCore already did with  =

Alt-Ergo which can be used as a prover in conjunction with SPARK. I know=
  =

the Alt-Ergo system was proved with Coq. Both Alt-Ergo and Coq are prove=
r  =

or proof checker, but how do you compare both? I know Coq uses  =

intuitionistic logic. What about Alt-Ergo? Intuitionistic too? Now  =

Alt-Ergo is already used with SPARK/Ada. Coq too? These are the main  =

questions I have in mind.

Any pointers welcome. I've not used any of these so far, just planning t=
o  =

learn one a bit (but not both). I am not necessarily seeking for  =

automatically generated Verification Condition from Ada.

-- =

=E2=80=9CSyntactic sugar causes cancer of the semi-colons.=E2=80=9D [1]
=E2=80=9CStructured Programming supports the law of the excluded muddle.=
=E2=80=9D [1]
[1]: Epigrams on Programming =E2=80=94 Alan J. =E2=80=94 P. Yale Univers=
ity