From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/881 Path: news.gmane.org!not-for-mail From: Vaughan Pratt Newsgroups: gmane.science.mathematics.categories Subject: Re: Comma categories Date: Mon, 19 Oct 1998 11:19:50 -0600 Message-ID: <199810191819.LAA20517@coraki.Stanford.EDU> References: <1.5.4.32.19981019161440.0067b7fc@goliat.ugr.es> NNTP-Posting-Host: main.gmane.org X-Trace: ger.gmane.org 1241017282 28073 80.91.229.2 (29 Apr 2009 15:01:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:01:22 +0000 (UTC) Cc: categories@mta.ca To: Manuel Bullejos Original-X-From: cat-dist Mon Oct 19 17:45:24 1998 Original-Received: (from Majordom@localhost) by mailserv.mta.ca (8.8.8/8.8.8) id QAA06673 for categories-list; Mon, 19 Oct 1998 16:38:07 -0300 (ADT) X-Authentication-Warning: mailserv.mta.ca: Majordom set sender to cat-dist@mta.ca using -f In-reply-to: Your message of "Mon, 19 Oct 1998 17:14:40 BST." <1.5.4.32.19981019161440.0067b7fc@goliat.ugr.es> Original-Sender: cat-dist@mta.ca Precedence: bulk Original-Lines: 17 Xref: news.gmane.org gmane.science.mathematics.categories:881 Archived-At: >Does any body know if comma categories have been defined in >enriched contexts? I'm not sure if it's what you have in mind, but combining comma categories and enrichment is the theme of Casley, R.T., Crew, R.F., Meseguer, J., and Pratt, V.R., ``Temporal Structures'', Mathematical Structures in Computer Science, Volume 1:2, 179-213, July 1991. The abstract is at my web page as http://boole.stanford.edu/chuguide.html#P2 Vaughan Pratt