From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/2186 Path: news.gmane.org!not-for-mail From: Galchin Vasili Newsgroups: gmane.science.mathematics.categories Subject: Category of directed multigraphs with loops Date: Mon, 17 Feb 2003 13:09:14 -0800 (PST) Message-ID: <20030217210914.94383.qmail@web12205.mail.yahoo.com> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 X-Trace: ger.gmane.org 1241018475 2923 80.91.229.2 (29 Apr 2009 15:21:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:21:15 +0000 (UTC) To: categories@mta.ca Original-X-From: rrosebru@mta.ca Mon Feb 17 22:36:43 2003 -0400 Return-path: Envelope-to: categories-list@mta.ca Delivery-date: Mon, 17 Feb 2003 22:36:43 -0400 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.10) id 18kxcX-0002U9-00 for categories-list@mta.ca; Mon, 17 Feb 2003 22:36:33 -0400 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 42 Original-Lines: 15 Xref: news.gmane.org gmane.science.mathematics.categories:2186 Archived-At: Hello, Given two graphs, A and B, I am trying figure out how to construct the product AxB. I have been rereading "Conceptual Mathemtatics" by Lawvere. The category of irreflexive graphs is one of the running examples throughout the book. I have been concentrating on the chapters concerned with the product of objects, but I don't see any details of how to construct AxB. Have I skipped over something? Regards, Bill Halchin