From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/5254 Path: news.gmane.org!not-for-mail From: Vaughan Pratt Newsgroups: gmane.science.mathematics.categories Subject: Re: Lambek's lemma Date: Thu, 12 Nov 2009 12:31:18 -0800 Message-ID: References: Reply-To: Vaughan Pratt NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1258079515 20231 80.91.229.12 (13 Nov 2009 02:31:55 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 13 Nov 2009 02:31:55 +0000 (UTC) To: categories list Original-X-From: categories@mta.ca Fri Nov 13 03:31:48 2009 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from mailserv.mta.ca ([138.73.1.1]) by lo.gmane.org with esmtp (Exim 4.50) id 1N8lww-0004jO-Mg for gsmc-categories@m.gmane.org; Fri, 13 Nov 2009 03:31:46 +0100 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.61) (envelope-from ) id 1N8lT3-0005uv-Op for categories-list@mta.ca; Thu, 12 Nov 2009 22:00:53 -0400 Original-Sender: categories@mta.ca Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:5254 Archived-At: Vaughan Pratt wrote: > Such a result [slicker proof of Euclid's Proposition 5] would register about 2 on the New York Times' Richter > scale of earthshaking mathematical results, were it not for the fact > that it was first noticed by a computer (so the story went). True to form I neglected to expand on "so the story went" -- Pappus noticed the same thing around 320 AD, cf http://aleph0.clarku.edu/~djoyce/java/elements/bookI/propI5.html again. Vaughan [For admin and other information see: http://www.mta.ca/~cat-dist/ ]