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Topic: Torkel Franzen argues
Replies: 25   Last Post: May 17, 2013 3:52 PM

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Bill Taylor

Posts: 186
Registered: 11/17/10
Re: Torkel Franzen argues
Posted: Apr 25, 2013 2:16 AM
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On Apr 25, 1:28 pm, Newberry <newberr...@gmail.com> wrote:

>     (x)((x+3 < x) --> (x = x+4))          (1)
>
> does not look manifestly true to me. ... The same problem occurs
> at the propositional level:
>
>     (P & ~P) --> Q                               (2)
>
> is notoriously counter-intuitive. It is called PARADOX of material
> implication, and it motivated research into relevance logics.


They are only paradoxes for relevant implication.

They are not paradoxes of Boolean implication.

-- Battling Bill

** Creation science - one of the flat earth sciences?



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