From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/5573 Path: news.gmane.org!not-for-mail From: Colin McLarty Newsgroups: gmane.science.mathematics.categories Subject: Re: Logical consequences of descent theory Date: Sat, 13 Feb 2010 12:40:45 -0500 Message-ID: References: Reply-To: Colin McLarty NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: ger.gmane.org 1266169370 17085 80.91.229.12 (14 Feb 2010 17:42:50 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 14 Feb 2010 17:42:50 +0000 (UTC) To: categories@mta.ca Original-X-From: categories@mta.ca Sun Feb 14 18:42:48 2010 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 4.69) (envelope-from ) id 1NgiUZ-0006OF-DG for gsmc-categories@m.gmane.org; Sun, 14 Feb 2010 18:42:47 +0100 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.61) (envelope-from ) id 1NghuN-0003Az-HK for categories-list@mta.ca; Sun, 14 Feb 2010 13:05:23 -0400 In-Reply-To: Original-Sender: categories@mta.ca Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:5573 Archived-At: 2010/2/12 William Boshuck : Makes a very nice point which I want to underline: > Descent theory has been a kind of definability > theory from the beginning, I think. See, e.g., > > Andre Weil, The Field of Definition of a Variety, > American Journal of Mathematics, Vol. 78, No. 3 > (Jul., 1956), pp. 509-524. Colin [For admin and other information see: http://www.mta.ca/~cat-dist/ ]