From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/1828 Path: news.gmane.org!not-for-mail From: Newsgroups: gmane.science.mathematics.categories Subject: Re: Complete atomic Boolean algebra: Reference? Date: Mon, 5 Feb 2001 12:29:23 +0100 (MET) Message-ID: <200102051129.MAA23214@kodder.math.uu.nl> NNTP-Posting-Host: main.gmane.org X-Trace: ger.gmane.org 1241018130 669 80.91.229.2 (29 Apr 2009 15:15:30 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:15:30 +0000 (UTC) To: categories@mta.ca Original-X-From: rrosebru@mta.ca Mon Feb 5 11:10:12 2001 -0400 Return-Path: Original-Received: (from Majordom@localhost) by mailserv.mta.ca (8.11.1/8.11.1) id f15ELJ301616 for categories-list; Mon, 5 Feb 2001 10:21:19 -0400 (AST) X-Authentication-Warning: mailserv.mta.ca: Majordom set sender to cat-dist@mta.ca using -f X-Sun-Charset: US-ASCII Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 10 Original-Lines: 13 Xref: news.gmane.org gmane.science.mathematics.categories:1828 Archived-At: This is of course folklore. I believe there is a proof (essentially) in Johnstone's Stone Spaces. I have written out a proof for students in chapter 1 of my "Basic Category Theory" notes; see http://www.math.uu.nl/people/jvoosten/onderwijs.html Jaap van Oosten