From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/8186 Path: news.gmane.org!not-for-mail From: Ondrej Rypacek Newsgroups: gmane.science.mathematics.categories Subject: Limits in REL Date: Thu, 3 Jul 2014 11:57:18 +0100 Message-ID: Reply-To: Ondrej Rypacek NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: ger.gmane.org 1404455883 16758 80.91.229.3 (4 Jul 2014 06:38:03 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 4 Jul 2014 06:38:03 +0000 (UTC) To: "categories@mta.ca" Original-X-From: majordomo@mlist.mta.ca Fri Jul 04 08:37:54 2014 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtp3.mta.ca ([138.73.1.186]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1X2x86-0005Fv-3F for gsmc-categories@m.gmane.org; Fri, 04 Jul 2014 08:37:54 +0200 Original-Received: from mlist.mta.ca ([138.73.1.63]:46440) by smtp3.mta.ca with esmtp (Exim 4.80) (envelope-from ) id 1X2x7h-0000iX-Ok; Fri, 04 Jul 2014 03:37:29 -0300 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1X2x7j-00012x-5O for categories-list@mlist.mta.ca; Fri, 04 Jul 2014 03:37:31 -0300 Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:8186 Archived-At: Hi all What is known about limits in REL , the (bi)category of sets and relations? I know there are biproducts; are there equalisers? And what about SPAN(C) or REL(C), spans and relations over a suitable category C ? Thanks a lot in advance, Ondrej [For admin and other information see: http://www.mta.ca/~cat-dist/ ]