From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/4521 Path: news.gmane.org!not-for-mail From: Johannes.Huebschmann@math.univ-lille1.fr Newsgroups: gmane.science.mathematics.categories Subject: Re: Asking for more trouble Date: Mon, 25 Aug 2008 16:47:41 +0200 (CEST) Message-ID: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1241019997 13678 80.91.229.2 (29 Apr 2009 15:46:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:46:37 +0000 (UTC) To: "Categories list" Original-X-From: rrosebru@mta.ca Mon Aug 25 13:25:19 2008 -0300 Return-path: Envelope-to: categories-list@mta.ca Delivery-date: Mon, 25 Aug 2008 13:25:19 -0300 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.61) (envelope-from ) id 1KXeqF-0002N6-HD for categories-list@mta.ca; Mon, 25 Aug 2008 13:22:55 -0300 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 56 Original-Lines: 35 Xref: news.gmane.org gmane.science.mathematics.categories:4521 Archived-At: These are Bourbaki terms. Denombrable: countable denombrable a l'infini: countable at infinity (the point at infinity of the Alexandroff compactification of a locally compact space has a countable neighborhood base) relativement compact: relatively compact (having compact closure) Johannes > G is now talking about locally compact spaces and there are two phrases= I > have not seen. One is "relatively compact". I assume this is the same= as > what I call "conditionally compact", i.e. having compact closure. The > other is "denombrable". The context is "Suppose that the locally compa= ct > space $X$ is denombrable a l'infini". Does it mean first countable? > > I don't want to start a discussion what bad terms these are, I just wan= t > to know what they mean. > > Michael > > >