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 22BECBBC1 for ; Wed, 13 Feb 2008 15:53:41 +0100 (CET) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAANqTskfAXQInh2dsb2JhbACQPQEBAQgKKZxk X-IronPort-AV: E=Sophos;i="4.25,346,1199660400"; d="scan'208";a="9144076" Received: from concorde.inria.fr ([192.93.2.39]) by mail3-smtp-sop.national.inria.fr with ESMTP; 13 Feb 2008 15:53:32 +0100 Received: from mail4-relais-sop.national.inria.fr (mail4-relais-sop.national.inria.fr [192.134.164.105]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id m1DErUV5018720 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=OK) for ; Wed, 13 Feb 2008 15:53:32 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAAGyTskc+FFrDgGdsb2JhbACQPQEBCQqdEQ X-IronPort-AV: E=Sophos;i="4.25,346,1199660400"; d="scan'208";a="22585540" Received: from vtab.com (HELO oden.vtab.com) ([62.20.90.195]) by mail4-smtp-sop.national.inria.fr with ESMTP; 13 Feb 2008 15:53:29 +0100 Received: from oden.vtab.com (oden.vtab.com [127.0.0.1]) by oden.vtab.com (Postfix) with ESMTP id E498726F04F for ; Wed, 13 Feb 2008 15:53:28 +0100 (CET) Received: from kicki.hq.vtech (kicki.hq.vtech [10.0.0.211]) by oden.vtab.com (Postfix) with ESMTP id CEC7C26EECE for ; Wed, 13 Feb 2008 15:53:28 +0100 (CET) Received: by kicki.hq.vtech (Postfix, from userid 7557) id B49EF81B3D; Wed, 13 Feb 2008 15:53:28 +0100 (CET) From: "=?utf-8?b?TWF0dGlhcyBFbmdkZWfDpQ==?= =?utf-8?b?cmQ=?=" To: caml-list@inria.fr In-reply-to: <9d3ec8300802130635va73a8adr3cfd4f50ed7e3394@mail.gmail.com> (till.varoquaux@gmail.com) Subject: Re: [Caml-list] type unsoundness with constraints and polymorphic variants References: <18352.43565.401296.820373@nyc-qws-r03.delacy.com> <20080212.132225.27792058.garrigue@math.nagoya-u.ac.jp> <47B17667.2090907@fmf.uni-lj.si> <20080213.170018.179955875.garrigue@math.nagoya-u.ac.jp> <4a051d930802130615l1b127f49md6e4f1c055de9238@mail.gmail.com> <80FA660E-FFEF-4499-A1B5-BAA72657E08E@cs.umd.edu> <9d3ec8300802130635va73a8adr3cfd4f50ed7e3394@mail.gmail.com> Message-Id: <20080213145328.B49EF81B3D@kicki.hq.vtech> Date: Wed, 13 Feb 2008 15:53:28 +0100 (CET) X-Virus-Scanned: ClamAV using ClamSMTP X-Miltered: at concorde with ID 47B3046A.000 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)! X-Spam: no; 0.00; mattias:01 mattias:01 variants:01 semantics:01 polymorphic:01 caml-list:01 semantic:02 constraints:03 programming:03 solid:95 probably:07 missing:07 formal:08 formal:08 prose:09 >I would be very impressed if a student managed to write a full formal >semantic in a summer. So would most people, but we may be missing the goal. A solid understanding of the language for serious programming or even independent reimplementation does not necessarily require formal semantics. A careful prose description would probably do.