From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/5097 Path: news.gmane.org!not-for-mail From: soloviev@irit.fr Newsgroups: gmane.science.mathematics.categories Subject: pushouts in REL Date: Thu, 20 Aug 2009 12:01:15 +0200 (CEST) Message-ID: Reply-To: soloviev@irit.fr NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1250791149 3696 80.91.229.12 (20 Aug 2009 17:59:09 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 20 Aug 2009 17:59:09 +0000 (UTC) To: categories@mta.ca Original-X-From: categories@mta.ca Thu Aug 20 19:59:01 2009 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from mailserv.mta.ca ([138.73.1.1]) by lo.gmane.org with esmtp (Exim 4.50) id 1MeBub-0002il-2n for gsmc-categories@m.gmane.org; Thu, 20 Aug 2009 19:58:57 +0200 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.61) (envelope-from ) id 1MeBHt-0001Ln-At for categories-list@mta.ca; Thu, 20 Aug 2009 14:18:57 -0300 Original-Sender: categories@mta.ca Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:5097 Archived-At: To the list: I am actually travelling (in Russia) and I need more or less urgently a reference concerning pullbacks and pushouts in the category of sets and relations - do they always exist etc - I would not adress it to the list if it would be not urgent and I would not have some difficulty with search from here - Best to all - Sergei Soloviev [For admin and other information see: http://www.mta.ca/~cat-dist/ ]