From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by yquem.inria.fr (Postfix) with ESMTP id 31485D15F for ; Sun, 24 Jul 2005 20:30:08 +0200 (CEST) Received: from ash25e.internode.on.net (ash25e.internode.on.net [203.16.214.182]) by nez-perce.inria.fr (8.13.0/8.13.0) with ESMTP id j6OIU68t010249 for ; Sun, 24 Jul 2005 20:30:07 +0200 Received: from rosella (ppp9-20.lns1.syd3.internode.on.net [59.167.9.20]) by ash25e.internode.on.net (8.12.9/8.12.6) with ESMTP id j6OITnjn001134; Mon, 25 Jul 2005 03:59:50 +0930 (CST) (envelope-from skaller@users.sourceforge.net) Subject: Re: [Caml-list] Some Clarifications From: skaller To: Robert Morelli Cc: Paul Snively , Kyle Consalus , caml-list@yquem.inria.fr, Ville-Pertti Keinonen In-Reply-To: <42E34C83.1090402@cs.utah.edu> References: <9cc3782b05071411004b27b6a4@mail.gmail.com> <42DB6161.4030507@cs.utah.edu> <42DD5F41.8060801@cs.utah.edu> <42DDECC6.8010209@exomi.com> <42E2DB1E.2010508@cs.utah.edu> <81A4F491-183D-46C4-B8A8-5DD4799B45C4@mac.com> <42E34C83.1090402@cs.utah.edu> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-2VVNifdQWMqrxucADOXr" Date: Mon, 25 Jul 2005 04:29:49 +1000 Message-Id: <1122229790.9027.68.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.1.1 X-Miltered: at nez-perce with ID 42E3DE2E.001 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; caml-list:01 morelli:01 'covariance:01 problem':01 statically:01 abstraction:01 variants:01 lambda:01 lambda:01 wrote:01 sourceforge:01 sourceforge:01 closures:01 tuples:01 calculus:02 X-Attachments: type="application/pgp-signature" name="signature.asc" X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=disabled version=3.0.3 --=-2VVNifdQWMqrxucADOXr Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sun, 2005-07-24 at 02:08 -0600, Robert Morelli wrote: > but I primarily raised that point to underline that I believe > the lack of a "theory" of large scale design issues is not a result of > it. Well, in my opinion, there is no 'theory' of large scale design for Object Orientation, whilst there IS a theory for functional programming.=20 Attempts have been made to develop OO theory, but the result primarily discredits OO, rather than supporting it: the so-called 'covariance problem' basically destroys class based (statically typed) object orientation as a paradigm. On the other hand, functional people DO have a well founded, elegant, long standing theoretical framework. Perhaps I might agree that Lambda Calculus is a low level theory .. but I am referring instead to a theory of abstraction at all levels: namely, Category Theory. CT subsumes lambda calculus, it has provided the inspiration for the ML language family module system, and the fundamental data types: tuples/records, variants, and of course function closures. --=20 John Skaller --=-2VVNifdQWMqrxucADOXr Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) iD8DBQBC494csRp8/9aGVGsRAgBcAJ0XdzJ0VyxDM/sE4ro3gXz3CrRiMACgnMcT 5+oVv0bT44vwssrZ+FSwj3M= =f1Re -----END PGP SIGNATURE----- --=-2VVNifdQWMqrxucADOXr--