Date: Apr 6, 2013 9:42 AM
Subject: Re: Matheology § 224

On 6 Apr., 15:32, Peter Percival
<> wrote:
> Nam Nguyen wrote:
> >          But if GC is undecidable in PA, there's no proof left in FOL but
> >          _structure theoretically verifying_ the truth value of GC in
> >          this structure.

> If the Goldbach conjecture is undecidable in PA then it is true.

Not necessarily. It could also be that a proof or disproof requires
more bits than are available.

Regards, WM