From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/1709 Path: news.gmane.org!not-for-mail From: Justin Pearson Newsgroups: gmane.science.mathematics.categories Subject: Re: RFN (Request for Notation) Date: Mon, 27 Nov 2000 17:39:48 +0100 Message-ID: <14882.36436.792098.783391@vivien.it.uu.se> References: <200011262125.NAA22532@kamiak.eecs.wsu.edu> NNTP-Posting-Host: main.gmane.org X-Trace: ger.gmane.org 1241018037 32538 80.91.229.2 (29 Apr 2009 15:13:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:13:57 +0000 (UTC) To: categories@mta.ca Original-X-From: rrosebru@mta.ca Mon Nov 27 15:15:06 2000 -0400 Return-Path: Original-Received: (from Majordom@localhost) by mailserv.mta.ca (8.11.1/8.11.1) id eARIalF00264 for categories-list; Mon, 27 Nov 2000 14:36:47 -0400 (AST) X-Authentication-Warning: mailserv.mta.ca: Majordom set sender to cat-dist@mta.ca using -f X-Authentication-Warning: vivien.it.uu.se: justin set sender to justin@DoCS.UU.SE using -f In-Reply-To: <200011262125.NAA22532@kamiak.eecs.wsu.edu> X-Mailer: VM 6.76 under Emacs 20.7.1 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 40 Original-Lines: 26 Xref: news.gmane.org gmane.science.mathematics.categories:1709 Archived-At: David B. Benson wrote: > Dear Colleagues, > > I am preparing notes for a sophomore (second year) > course, and I am finding several places wherein > I can find no standard notation. Your suggestions > will be most appreciated. > > > (2) I need a snappy name for an order pair in > a relation R. The books I have seem to just > say ``...the ordered pair (x,y) in relation R...'' Depends what you want to talk about. If you want to talk about R as simple a set then I would normally refer to an element of R a tuple of R where the context tells you that the tuple is of length two. Regards Justin