From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/304 Path: news.gmane.org!not-for-mail From: categories Newsgroups: gmane.science.mathematics.categories Subject: Re: query Date: Mon, 10 Feb 1997 11:52:23 -0400 (AST) Message-ID: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Trace: ger.gmane.org 1241016881 25099 80.91.229.2 (29 Apr 2009 14:54:41 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 14:54:41 +0000 (UTC) To: categories Original-X-From: cat-dist Mon Feb 10 11:53:50 1997 Original-Received: by mailserv.mta.ca; id AA24853; Mon, 10 Feb 1997 11:52:24 -0400 Original-Lines: 7 Xref: news.gmane.org gmane.science.mathematics.categories:304 Archived-At: Date: Mon, 10 Feb 1997 07:50:48 -0500 (EST) From: Peter Freyd I've been talking about paracategories for several years now. But they require some more axioms. And they don't require inverses.