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- Newsgroups: sci.physics
- Path: sparky!uunet!mcsun!sunic!sics.se!torkel
- From: torkel@sics.se (Torkel Franzen)
- Subject: Re: Lowneheim-Skolem theorem (was: Continuos vs. discrete models)
- In-Reply-To: jbaez@riesz.mit.edu's message of Fri, 20 Nov 92 22:04:24 GMT
- Message-ID: <TORKEL.92Nov21091802@bast.sics.se>
- Sender: news@sics.se
- Organization: Swedish Institute of Computer Science, Kista
- References: <1992Nov17.124233.24312@oracorp.com> <1992Nov20.220424.22979@galois.mit.edu>
- Date: Sat, 21 Nov 1992 08:18:02 GMT
- Lines: 14
-
- In article <1992Nov20.220424.22979@galois.mit.edu> jbaez@riesz.mit.edu
- (John C. Baez) writes:
-
- >I object. Lowenheim-Skolem says there are countable models of the
- >reals; you can go ahead and use these if you like, and I will not
- >object, since this does not affect what *theorems* you can prove about
- >the real numbers.
-
- I'm pleased to find that the physics of the real numbers is recognized
- as proper physics these days. But what do you mean by a "model of the reals"?
- This doesn't mean anything in standard terminology. Also, what do you mean
- by "using" a countable model (of whatever unspecified theory you have in
- mind)?
-
-