Re: Simple yet Profound Metatheorem



H. J. Sander Bruggink wrote:
Charlie-Boo wrote:

New Question: Just curious - is there even a wff such that you can
prove it to be intuitionistically valid but I can't prove the wff
using case analysis?
No, there isn't.

Sorry, I read the question as: "is there even a wff such that you can prove it to be intuitionistically valid but I can't prove the wff *to be classically valid* using case analysis?

Now, I see the question really is the same as the previous
question, so the answer should be:

  "Yes, *any* intuitionistically valid wff."

groente
-- Sander
.



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