From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/4603 Path: news.gmane.org!not-for-mail From: Michael Barr Newsgroups: gmane.science.mathematics.categories Subject: Re: Bourbaki and Categories Date: Thu, 18 Sep 2008 10:36:27 -0400 (EDT) Message-ID: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Trace: ger.gmane.org 1241020052 14010 80.91.229.2 (29 Apr 2009 15:47:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:47:32 +0000 (UTC) To: R Brown , categories@mta.ca Original-X-From: rrosebru@mta.ca Fri Sep 19 13:26:38 2008 -0300 Return-path: Envelope-to: categories-list@mta.ca Delivery-date: Fri, 19 Sep 2008 13:26:38 -0300 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.61) (envelope-from ) id 1Kgigd-0003Xt-I5 for categories-list@mta.ca; Fri, 19 Sep 2008 13:18:27 -0300 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 73 Original-Lines: 24 Xref: news.gmane.org gmane.science.mathematics.categories:4603 Archived-At: The three books I have authored or co-authored all contain a chapter of about 40 pages that is an introduction to category theory. They are largely identical (the one for Acyclic Models has a an added section on categories of fractions, needed for that book). The one in TTT is already freely available and, with Charles's permission, I would happily post that in whatever place you would like. Michael On Wed, 17 Sep 2008, R Brown wrote: > There are already some pretty good categorical entries on wiki; I have > modified some of the entries on groups, actions, equivalence relations, to > include references to groupoids, which has resulted in hits. But we should > also consider planetmath.org (entries are contributed under the terms of the > GNU Free Documentation License (FDL)) which allows for group work and is not > so open as wiki to general modification. It needs a group of you wonderful > energetic people to engage with reviewing what is on wiki and planetmath and > making sure they express what is fealt to be desirable! > ...