I, even I, would celebrate, in rhymes inept the great...

Marc Aramini · 17 Oct 2014, 14:19 · from 2014-October.txt.gz

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From: marcaramini at gmail.com (Marc Aramini)
Date: Fri, 17 Oct 2014 07:19:31 -0700
Subject: (urth) I, even I, would celebrate, in rhymes inept the great...
In-Reply-To: <0DA454A32913114C9CC19BB781FB907D0136BB at ETSUMB2.etsu.edu>
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	<0DA454A32913114C9CC19BB781FB907D01365E at ETSUMB2.etsu.edu>
	<CAF1072w4sOuKQDkcpmZOhcxChKVudv9REvzND81WfUKp6SaQsA at mail.gmail.com>
	<0DA454A32913114C9CC19BB781FB907D0136BB at ETSUMB2.etsu.edu>
Message-ID: <CAF1072yUmxd59WEDGtFAbjXff3t2LT_U4Ev-EcevqURmU=qTmw at mail.gmail.com>

yes, if it becomes false, you don't apply it.  Thus, there is no case where
modus ponens can ever be misapplied, and your original challenge one which
cannot be met. If A, then B ... I'm going to stick to talking about Wolfe.

On Fri, Oct 17, 2014 at 7:03 AM, Norwood, Frederick Hudson <
NORWOODR at mail.etsu.edu> wrote:

>  Ant?nio Pedro Marques is at least unabashedly post-modern, refusing to
> be chained by logic.
>
>
>
> You, Marc Aramini, keep confusing logic with science.  Mathematics is
> built on logic.  If the premise becomes false, then you no longer apply
> modus ponens.  You don?t need to lose your head.  Every even number is
> divisible by two.  What if the original premise is ?This number is odd.?
> Then the theorem doesn?t apply.  It doesn?t disprove modus ponens.
>
>
>
> Rick Norwood
>
>
>
> *From:* Urth [mailto:urth-bounces at lists.urth.net] *On Behalf Of *Marc
> Aramini
> *Sent:* Friday, October 17, 2014 9:40 AM
>
> *To:* The Urth Mailing List
> *Subject:* Re: (urth) I, even I, would celebrate, in rhymes inept the
> great...
>
>
>
> These are linguistic truths built into the definitions themselves ...
>
> the statement if A then B is either true linguistically
>
> or it isn't, in which case the premise was wrong.  It doesn't mean much
> else.
>
> ie "If I have no head I will die." technology advances, and now I can live
> without a head - the original premise then becomes false.  Doesn't mean
> anything.
>
>
>
> On Fri, Oct 17, 2014 at 6:23 AM, Norwood, Frederick Hudson <
> NORWOODR at mail.etsu.edu> wrote:
>
> Modus ponens is unprovable.  You have to start somewhere.  Is it possible
> that modus ponens is false?  Of course it is possible.  I may be a madman,
> and modus ponens may not say what I think it says.  I may be the only
> creature in the universe, and modus ponens may really mean, "Thou art
> God."  But these objections can be raised in any discussion whatsoever, and
> after a while most people stop raising them.  If I am sane, and if modus
> ponens says what I think it says, then it seems to me bedrock on which to
> build.  Further, if there are cases where A implies B, A is true, and B is
> false, then that ends the discussion, because every statement is both true
> and false, and in that case there is no point in saying anything at all.
>
> Rick Norwood
>
> -----Original Message-----
> From: Urth [mailto:urth-bounces at lists.urth.net] On Behalf Of Jeffery
> Wilson clueland.com
> Sent: Friday, October 17, 2014 1:56 AM
> To: The Urth Mailing List
> Subject: Re: (urth) I, even I, would celebrate, in rhymes inept the
> great...
>
> On 10/16/2014 7:07 AM, Norwood, Frederick Hudson wrote:
> > Jeffery Wilson:  I do say A is A.  That's called the reflexive property
> of equality.  And, yes, I've read the Lewis Carroll bit.  Even wrote a poem
> about it.
>
> If you already know that the modus ponens is unprovable, and are familiar
> with reflexive equality which is axiomatic, why are you bothering to hold
> up modus ponens as an example of an absolute truth?
>
> --
> Jeff Wilson - < jwilson at clueland.com >
> A&M Texarkana Computational Intelligence Lab < http://www.tamut.edu/cil >
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