From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/2117 Path: news.gmane.org!not-for-mail From: Galchin Vasili Newsgroups: gmane.science.mathematics.categories Subject: (pre-)Sheaves Date: Thu, 23 Jan 2003 11:38:55 -0800 (PST) Message-ID: <20030123193855.60042.qmail@web12201.mail.yahoo.com> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1241018422 2561 80.91.229.2 (29 Apr 2009 15:20:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:20:22 +0000 (UTC) To: categories@mta.ca Original-X-From: rrosebru@mta.ca Fri Jan 24 13:46:04 2003 -0400 Return-path: Envelope-to: categories-list@mta.ca Delivery-date: Fri, 24 Jan 2003 13:46:04 -0400 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.10) id 18c7kh-0003TM-00 for categories-list@mta.ca; Fri, 24 Jan 2003 13:36:27 -0400 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 42 Original-Lines: 16 Xref: news.gmane.org gmane.science.mathematics.categories:2117 Archived-At: Hello, I am trying to get my mind around (pre-)sheaves. I have studied point set topology in the past, but I didn't run into the notion of local homeomorphism. It seems to me that every local homeomorphism is a homeomorphism (because in a topological space (X, T), X is always a neighorhood of any point in X). Am I correct? Regards, Bill Halchin