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- Path: sparky!uunet!sun-barr!ames!agate!math.berkeley.edu!solovay
- From: solovay@math.berkeley.edu (Robert M. Solovay)
- Newsgroups: sci.logic
- Subject: Re: Non-standard integers.
- Date: 17 Aug 1992 08:57:03 GMT
- Organization: U.C. Berkeley Math. Department.
- Lines: 17
- Distribution: world
- Message-ID: <16npkvINNjlq@agate.berkeley.edu>
- References: <1992Aug17.141017.373@csc.canterbury.ac.nz>
- NNTP-Posting-Host: math.berkeley.edu
- Summary: Result quoted is false
-
- In article <1992Aug17.141017.373@csc.canterbury.ac.nz> wft@math.canterbury.ac.nz (Bill Taylor) writes:
- >I recall once seeing an article by Kemeny, in which he looked at a nonstandard
- >model of the integers, in which there would be two (nonstandard) integers,
- >n and n+2, both of which would be divisible by all standard integers. The
- >hope was to be able to use this model to decide the twin-prime (or related)
- >conjectures.
- >
- If the integer n is divisible by 4, then n + 2 is not. This fact
- [obviously true in the standard model] can be proved in PA, and so
- holds in non-standard models as well.
-
- It's a reasonable question (to which I don't know the answer) what the
- result of Kemeny is that wft is misremembering.
- >
- >Thanks, Bill Taylor. wft@math.canterbury.ac.nz
-
- Bob Solovay solovay@math.berkeley.edu
-