From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/7309 Path: news.gmane.org!not-for-mail From: "Eduardo J. Dubuc" Newsgroups: gmane.science.mathematics.categories Subject: Re: The Idea of Structure as Data and Conditions Date: Sun, 27 May 2012 15:16:37 -0300 Message-ID: References: Reply-To: "Eduardo J. Dubuc" NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1338145232 30132 80.91.229.3 (27 May 2012 19:00:32 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 27 May 2012 19:00:32 +0000 (UTC) Cc: "Ellis D. Cooper" , categories@mta.ca To: Michael Barr Original-X-From: majordomo@mlist.mta.ca Sun May 27 21:00:31 2012 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtpx.mta.ca ([138.73.1.80]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1SYihV-0007JR-7s for gsmc-categories@m.gmane.org; Sun, 27 May 2012 21:00:25 +0200 Original-Received: from mlist.mta.ca ([138.73.1.63]:44786) by smtpx.mta.ca with esmtp (Exim 4.77) (envelope-from ) id 1SYigy-00034i-Jw; Sun, 27 May 2012 15:59:52 -0300 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1SYigz-0007ui-Nu for categories-list@mlist.mta.ca; Sun, 27 May 2012 15:59:53 -0300 In-Reply-To: Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:7309 Archived-At: On 26/05/12 20:48, Michael Barr wrote: > I never understood why the founding paper in category theory was called > "The general theory of natural equivalences", when they do consider more > general natural transformations. Well, I always understood that title as meaning that they GENERALIZE the notion of natural equivalences that had as particular examples. e.d. [For admin and other information see: http://www.mta.ca/~cat-dist/ ]