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Article #1062Re: Why Some Sentences Lack Truth Values
From: Daryl McCullough
Date: Mon, 05 May 2008 13:35
Date: Mon, 05 May 2008 13:35
28 lines
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1854 bytes
Newberry says... > >We will utilize the following three definitions. > >Definition 1: A sentence is meaningful if and only if it is a picture >of a possible state of affairs. > >Definition 2: A sentence is true if and only if it corresponds to an >actual state of affairs. > >Definition 3: A sentence is false if its negation corresponds to an >actual state of affairs. As Jesse Hughes points out, your Definition 1 needs some work. I think it should say something like "A sentence is meaningful if and only if it, or its negation, is a picture of a possible state of affairs". That way, a sentence is true if and only if its negation is false. Also, your definition 2 doesn't accomplish anything. You're explaining the predicate "is true" in terms of the predicate "corresponds to an actual state of affairs". But that phrase is no better defined than "is true". Which sentences correspond to an actual state of affairs, and which don't? -- Daryl McCullough Ithaca, NY
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X-Google-Thread: 10cc56,aa4b149b167b8a82 X-Google-Thread: 10ecd1,aa4b149b167b8a82 X-Google-Attributes: gid10cc56,gid10ecd1,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news4.google.com!out01b.usenetserver.com!news.usenetserver.com!in01.usenetserver.com!news.usenetserver.com!spln!extra.newsguy.com!newsp.newsguy.com!drn From: stevendaryl3016@yahoo.com (Daryl McCullough) Newsgroups: sci.logic,fa.analytic-philosophy Subject: Re: Why Some Sentences Lack Truth Values Date: 5 May 2008 06:35:35 -0700 Organization: NewsGuy - Unlimited Usenet $19.95 Lines: 29 Message-ID: <fvn2f701kf@drn.newsguy.com> References: <026f9bc3-c984-42e0-b4d0-8a109f4a36b4@k10g2000prm.googlegroups.com> NNTP-Posting-Host: p9702000000100648b04a9bd8655687ebe929dcc261aec0da.newsdawg.com User-Agent: Direct Read News 5.16