From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/6461 Path: news.gmane.org!not-for-mail From: David Roberts Newsgroups: gmane.science.mathematics.categories Subject: Re: Reference for monoidal bicategory of spans? Date: Wed, 12 Jan 2011 07:32:36 +1030 Message-ID: References: Reply-To: David Roberts NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: dough.gmane.org 1294789926 24758 80.91.229.12 (11 Jan 2011 23:52:06 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 11 Jan 2011 23:52:06 +0000 (UTC) Cc: categories To: Mike Stay Original-X-From: majordomo@mlist.mta.ca Wed Jan 12 00:52:02 2011 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtpx.mta.ca ([138.73.1.114]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Pco0O-0004FS-Ps for gsmc-categories@m.gmane.org; Wed, 12 Jan 2011 00:52:00 +0100 Original-Received: from mlist.mta.ca ([138.73.1.63]:42707) by smtpx.mta.ca with esmtp (Exim 4.71) (envelope-from ) id 1Pco09-00009k-LU; Tue, 11 Jan 2011 19:51:45 -0400 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1Pco05-00046n-8G for categories-list@mlist.mta.ca; Tue, 11 Jan 2011 19:51:41 -0400 In-Reply-To: Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:6461 Archived-At: Hi Mike, how about Stephen Lack, R.F.C Walters, R.J. Wood, Bicategories of Spans as cartesian bicategories, submitted to Theory and Applications of Categories. (available from http://arxiv.org/abs/0910.2996) David [Note from moderator: The article cited has appeared as Vol 24 #1 of TAC.] On 11 January 2011 09:48, Mike Stay wrote: > Can anyone provide a reference for the fact that given a category C > with pullbacks and finite products, you get a monoidal bicategory > Span(C)? > -- > Mike Stay - metaweta@gmail.com > http://www.cs.auckland.ac.nz/~mike > http://reperiendi.wordpress.com [For admin and other information see: http://www.mta.ca/~cat-dist/ ]