[FOM] predicative foundations
Robert M. Solovay
solovay at Math.Berkeley.EDU
Tue Feb 14 21:25:34 EST 2006
On Tue, 14 Feb 2006, Harvey Friedman wrote:
> 2. Give me one example of a theorem aobut finite objects, in what you call
> "normal" or "core" mathematics (I make a distinction between the two), that
> is not handled in PA, or even EFA. Both PA and EFA are far less than
> predicativity - both mathematically and philosophically.
Surely the current proof of Wiles-Taylor is not routinely
formalizable in PA [with its appeal, for example to the Langlands-Tunnel
theorem].
I am aware that you have *conjectured* that FLT should be provable
in EFA.
--Bob Solovay
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