Article View: sci.logic
Article #736Re: logic question
From: Babylonian
Date: Wed, 06 Jul 2005 17:10
Date: Wed, 06 Jul 2005 17:10
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WARREN GREENWALD wrote: > An instructor teaches a class five days a week, Monday through Friday. He > tells > his class that he will give one more quiz on one day during the final week > of classes, but that the students will not know for sure the quiz will be > that day > until they come to the classroom. What is the last day of the week he can > give > the quiz to satisify these conditions? Try this: Since the instructor has decieved the students into thinking the test cannot be given on Friday, they won't know it will be given on Friday until they come to the classroom. A falsehood cannot be a truth, but a lie can. The weak form of the liar, "I am lying", can be resolved as a truth because the speaker is trying to decieve us into thinking his statement is false.
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X-Google-Thread: 10cc56,5f387d273154170 X-Google-Thread: 109d8a,5f387d273154170 X-Google-Thread: 10d67e,5f387d273154170 X-Google-Attributes: gid10cc56,gid109d8a,gid10d67e,public X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!g47g2000cwa.googlegroups.com!not-for-mail From: "Babylonian" <starofbabylon@yahoo.com> Newsgroups: sci.logic,sci.math,aus.mathematics Subject: Re: logic question Date: 6 Jul 2005 10:10:19 -0700 Organization: http://groups.google.com Lines: 21 Message-ID: <1120669819.021684.283540@g47g2000cwa.googlegroups.com> References: <s_Tye.393158$cg1.123533@bgtnsc04-news.ops.worldnet.att.net> NNTP-Posting-Host: 4.158.45.2 Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Trace: posting.google.com 1120669825 19216 127.0.0.1 (6 Jul 2005 17:10:25 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Wed, 6 Jul 2005 17:10:25 +0000 (UTC) In-Reply-To: <s_Tye.393158$cg1.123533@bgtnsc04-news.ops.worldnet.att.net> User-Agent: G2/0.2 Complaints-To: groups-abuse@google.com Injection-Info: g47g2000cwa.googlegroups.com; posting-host=4.158.45.2; posting-account=p_kBUA0AAADMEFgZPTDcuJTSozbmeIg6