From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=AWL autolearn=disabled version=3.1.3 X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) by yquem.inria.fr (Postfix) with ESMTP id 80AEFBC69 for ; Thu, 4 Oct 2007 03:57:46 +0200 (CEST) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAAP7lA0fAXQImh2dsb2JhbACOOAEBCQon X-IronPort-AV: E=Sophos;i="4.21,226,1188770400"; d="scan'208";a="3724134" Received: from discorde.inria.fr ([192.93.2.38]) by mail3-smtp-sop.national.inria.fr with ESMTP; 04 Oct 2007 03:57:46 +0200 Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83]) by discorde.inria.fr (8.13.6/8.13.6) with ESMTP id l941vjjp024418 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=OK) for ; Thu, 4 Oct 2007 03:57:46 +0200 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAAIblA0fLENaMnmdsb2JhbACOOAEBAgcEBic X-IronPort-AV: E=Sophos;i="4.21,226,1188770400"; d="scan'208";a="2350102" Received: from ipmail01.adl2.internode.on.net ([203.16.214.140]) by mail2-smtp-roc.national.inria.fr with ESMTP; 04 Oct 2007 03:57:44 +0200 X-IronPort-AV: E=Sophos;i="4.21,226,1188743400"; d="scan'208";a="203774420" Received: from ppp121-44-123-220.lns10.syd6.internode.on.net (HELO [192.168.1.201]) ([121.44.123.220]) by ipmail01.adl2.internode.on.net with ESMTP; 04 Oct 2007 11:22:05 +0930 Subject: Re: [Caml-list] Unsoundness is essential From: skaller To: "Joshua D. Guttman" Cc: caml-list@inria.fr In-Reply-To: References: <20071003083529.40DA2A99F@Adric.metnet.fnmoc.navy.mil> <4703FDEF.7030900@univ-savoie.fr> <1191451810.7218.86.camel@rosella.wigram> Content-Type: text/plain Date: Thu, 04 Oct 2007 11:52:04 +1000 Message-Id: <1191462724.7542.76.camel@rosella.wigram> Mime-Version: 1.0 X-Mailer: Evolution 2.10.1 Content-Transfer-Encoding: 7bit X-Miltered: at discorde with ID 47044899.000 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)! X-Spam: no; 0.00; sourceforge:01 sourceforge:01 wrote:01 integer:01 caml-list:01 writes:01 theorem:02 strong:96 programming:03 guttman:04 wed:06 unsound:07 differently:07 describe:07 john:08 On Wed, 2007-10-03 at 19:28 -0400, Joshua D. Guttman wrote: > skaller writes: > > > Goedel's theorem says that any type system strong enough > > to describe integer programming is necessarily unsound. > > Are you sure that's what it *says*? I thought I remembered > it stated differently. I paraphrased it, deliberately, in effect claiming an analogous situation holds with type systems. -- John Skaller Felix, successor to C++: http://felix.sf.net