Path: text.usenetserver.com!out04a.usenetserver.com!news.usenetserver.com!in02.usenetserver.com!news.usenetserver.com!pd7cy1no!pd7cy2no!shaw.ca!pd7urf1no.POSTED!53ab2750!not-for-mail X-Trace-PostClient-IP: 24.84.208.66 From: paul c User-Agent: Thunderbird 2.0.0.6 (Macintosh/20070728) MIME-Version: 1.0 Newsgroups: comp.databases.theory Subject: Re: RM formalism supporting partial information References: <1195048037.452393.204120@y27g2000pre.googlegroups.com> <473b1fdc$0$5270$9a566e8b@news.aliant.net> <1195078888.418889.74500@e34g2000pro.googlegroups.com> <92ecb0fc-eb59-417c-9327-a8a0a80a47c5@i12g2000prf.googlegroups.com> In-Reply-To: <92ecb0fc-eb59-417c-9327-a8a0a80a47c5@i12g2000prf.googlegroups.com> X-No-Archive: yes Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Lines: 10 Message-ID: Date: Thu, 15 Nov 2007 03:34:58 GMT NNTP-Posting-Host: 64.59.144.74 X-Complaints-To: abuse@shaw.ca X-Trace: pd7urf1no 1195097698 64.59.144.74 (Wed, 14 Nov 2007 20:34:58 MST) NNTP-Posting-Date: Wed, 14 Nov 2007 20:34:58 MST Organization: Shaw Residential Internet Xref: usenetserver.com comp.databases.theory:167332 X-Received-Date: Wed, 14 Nov 2007 22:34:58 EST (text.usenetserver.com) Marshall wrote: ... > You didn't say an attribute *has* a name and a domain. You said > an attribute *is* a name and a domain. So you can have two > different attributes with the same name. He did mention "unique" which I took to mean what D&D expressed as something like "no two attributes have the same name". While I'd like his material to be less dependent on English nuances, as a draft exercise, I'd say the guy has a fair excuse.