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- From: jbaez@riesz.mit.edu (John C. Baez)
- Newsgroups: sci.math
- Subject: Re: ZFC etc. (was Re: Report on Philosophies of Physicists)
- Message-ID: <1992Sep15.220020.14601@galois.mit.edu>
- Date: 15 Sep 92 22:00:20 GMT
- References: <TORKEL.92Sep15063308@bast.sics.se> <1992Sep15.165635.12446@galois.mit.edu> <TORKEL.92Sep15200707@bast.sics.se>
- Sender: news@galois.mit.edu
- Organization: MIT Department of Mathematics, Cambridge, MA
- Lines: 18
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-
- Torkel Franzen writes:
- In article <1992Sep15.165635.12446@galois.mit.edu> jbaez@riesz.mit.edu
- (John C. Baez) writes:
-
- > >The propositional calculus might be inconsistent and we have somehow
- failed
- > >to notice this so far;
-
- > This is an observation of the same kind as "perhaps the fundamental
- >theorem of arithmetic is not really true", or "perhaps Euclid's
- >algorithm sometimes gives the wrong answer", and so on. Not very
- >exciting stuff.
-
- I'm sorry not to have excited Torkel, but as the original questioner
- was wondering whether the evidence for the consistency of ZFC was
- only empirical, I thought this was worth noting, since some people
- seem to think it is *impossible* that the propositional calculus
- is inconsistent.
-