From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/2913 Path: news.gmane.org!not-for-mail From: Peter Freyd Newsgroups: gmane.science.mathematics.categories Subject: re: semigroups with many objects Date: Mon, 28 Nov 2005 07:26:29 -0500 (EST) Message-ID: <200511281226.jASCQTx3009541@saul.cis.upenn.edu> NNTP-Posting-Host: main.gmane.org X-Trace: ger.gmane.org 1241018980 6337 80.91.229.2 (29 Apr 2009 15:29:40 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:29:40 +0000 (UTC) To: categories@mta.ca Original-X-From: rrosebru@mta.ca Mon Nov 28 12:08:06 2005 -0400 Return-path: Envelope-to: categories-list@mta.ca Delivery-date: Mon, 28 Nov 2005 12:08:06 -0400 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.52) id 1EglTx-0001wR-35 for categories-list@mta.ca; Mon, 28 Nov 2005 12:03:57 -0400 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 58 Original-Lines: 11 Xref: news.gmane.org gmane.science.mathematics.categories:2913 Archived-At: Jacobson coined "rng" for a ring without identity and Bill returned the favor by proposing "rig" for a ring without negation (at least Bill's proposal can be pronounced). Alas, "catgory" is the only approximation for the instant case -- the only one, that is, if you refuse to count "ctegory" (category without automorphisms). Seriously though, "semi-category" is the one proposal not needing explanation. May I suggest that its very obviousness is why it was avoided.