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- Xref: sparky sci.logic:1942 alt.uu.future:257
- Newsgroups: sci.logic,alt.uu.future
- Path: sparky!uunet!snorkelwacker.mit.edu!galois!riesz!jbaez
- From: jbaez@riesz.mit.edu (John C. Baez)
- Subject: Re: Are all crows black? => Logic as an essential subject?
- Message-ID: <1992Nov6.024802.6941@galois.mit.edu>
- Sender: news@galois.mit.edu
- Nntp-Posting-Host: riesz
- Organization: MIT Department of Mathematics, Cambridge, MA
- References: <Bx5DIB.8qF@cck.coventry.ac.uk> <1992Nov4.170813.27890@CSD-NewsHost.Stanford.EDU> <1992Nov5.182513.25397@lclark.edu>
- Date: Fri, 6 Nov 92 02:48:02 GMT
- Lines: 19
-
- In article <1992Nov5.182513.25397@lclark.edu> higa@lclark.edu (Keith Higa) writes:
- >In article <1992Nov4.170813.27890@CSD-NewsHost.Stanford.EDU>
- >pratt@Sunburn.Stanford.EDU (Vaughan R. Pratt) writes:
- >>I have very mixed feelings about this. Freshman math at Gunn High
- >>(where my 14 year old goes) started out this year with a couple of
- >>weeks of propositional logic before getting into geometry etc. My
- >>intuitive feeling was that she got much less useful math out of the
- >>logic than out of the geometry. On the other hand logic is fundamental
- >>to thought, and even if humans don't reason propositionally it is good
- >>to at least be aware of a logical system that they could plausibly
- >>reason in, albeit clumsily.
- >
- >My logic professor brought up the story of Bertrand Russell. I think
- >(correct me if I'm wrong), that he and a co-author set out to prove that
- >all math was based on logic, and it took them two volumes to logically
- >prove that 1+1=2.
-
- There were, however, some interesting lemmas.
-
-