From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/6111 Path: news.gmane.org!not-for-mail From: Michael Barr Newsgroups: gmane.science.mathematics.categories Subject: First erratum Date: Sat, 4 Sep 2010 20:43:54 -0400 (EDT) Message-ID: Reply-To: Michael Barr NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Trace: dough.gmane.org 1283701257 30970 80.91.229.12 (5 Sep 2010 15:40:57 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 5 Sep 2010 15:40:57 +0000 (UTC) To: Categories list Original-X-From: majordomo@mlist.mta.ca Sun Sep 05 17:40:56 2010 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtpx.mta.ca ([138.73.1.138]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1OsHKx-0003UN-Ow for gsmc-categories@m.gmane.org; Sun, 05 Sep 2010 17:40:55 +0200 Original-Received: from mlist.mta.ca ([138.73.1.63]:51502) by smtpx.mta.ca with esmtp (Exim 4.71) (envelope-from ) id 1OsHJg-0007co-1I; Sun, 05 Sep 2010 12:39:36 -0300 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1OsHJc-0005Ll-FM for categories-list@mlist.mta.ca; Sun, 05 Sep 2010 12:39:32 -0300 Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:6111 Archived-At: George Janelidze just wrote to tell me that the definition of equivalence of categories is wrong. Yes, and it is wrong in the original too. The corrected version, with a new footnote is in the latest version, just posted. George further requested that I maintain a list of errata so if you find an error you can refer to that list before sending it to me. Instead, since I will post a new version whenever I get and correct an error, please just check your errors against the latest version. I don't know how many times, I read G's definition of categorical equivalence, not realzing that it was insufficient. Michael [For admin and other information see: http://www.mta.ca/~cat-dist/ ]