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- Xref: sparky sci.logic:1958 alt.uu.future:259
- Newsgroups: sci.logic,alt.uu.future
- Path: sparky!uunet!stanford.edu!CSD-NewsHost.Stanford.EDU!Tarski.Stanford.EDU!casley
- From: casley@Tarski.Stanford.EDU (Ross Casley)
- Subject: Re: Are all crows black? => Logic as an essential subject?
- Message-ID: <1992Nov8.072149.18855@CSD-NewsHost.Stanford.EDU>
- Sender: news@CSD-NewsHost.Stanford.EDU
- Organization: Computer Science Department, Stanford University.
- References: <Bx5DIB.8qF@cck.coventry.ac.uk> <1992Nov4.170813.27890@CSD-NewsHost.Stanford.EDU> <1992Nov5.182513.25397@lclark.edu>
- Date: Sun, 8 Nov 1992 07:21:49 GMT
- Lines: 26
-
- In article <1992Nov5.182513.25397@lclark.edu> higa@lclark.edu (Keith Higa) writes:
- >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.
- >
-
- The other author is Whitehead. The work is "Principia Mathematica". Russell
- and Whitehead argue against the position, advanced by Immanuel Kant, that
- mathematical truths are neither empirical (to be established by observation)
- nor "analytic" (to be established by reasoning about the meanings of words).
- They do this by showing that mathematical truths are analytic after all.
- They manage to develop a good deal of the basics of mathematical logic
- along the way.
-
- It does take a lot of work to get to a position where a statement that is
- clearly mathematical is clearly analytic too. But that doesn't seem to
- have any bearing on whether it is worthwhile to learn elementary logic
- in high school.
-
- -Ross
-
- PS Who drew the cartoon with a customer saying to a waiter "Yes,
- the addition seems correct, but I am concerned that the axioms of arithmetic
- may be inconsistent thus rendering the computation invalid?"
-
-