Re: Non standard models of PA
- From: george <greeneg@xxxxxxxxxx>
- Date: Mon, 22 Oct 2007 10:44:24 -0700
On Oct 22, 1:41 pm, aatu.koskensi...@xxxxxxxxx wrote:
Yes. Every consistent theory has a Delta-2 model.
Excuse me for lacking context...
"Every" unqualified is B R O A D.
Is this every theory of arithmetic, every recursively
axiomatizable first order theory, or, really, EVERY theory?
.
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