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- Xref: sparky sci.physics:14575 sci.math:11355
- Newsgroups: sci.physics,sci.math
- Path: sparky!uunet!stanford.edu!CSD-NewsHost.Stanford.EDU!Sunburn.Stanford.EDU!pratt
- From: pratt@Sunburn.Stanford.EDU (Vaughan R. Pratt)
- Subject: Re: Report on Philosophies of Physicists
- Message-ID: <1992Sep13.191455.24754@CSD-NewsHost.Stanford.EDU>
- Sender: news@CSD-NewsHost.Stanford.EDU
- Organization: Computer Science Department, Stanford University.
- References: <TORKEL.92Sep13094850@bast.sics.se> <1992Sep13.145145.22563@CSD-NewsHost.Stanford.EDU> <TORKEL.92Sep13174850@bast.sics.se>
- Date: Sun, 13 Sep 1992 19:14:55 GMT
- Lines: 53
-
- In article <TORKEL.92Sep13174850@bast.sics.se> torkel@sics.se (Torkel Franzen) writes:
-
- > Now, my claim is that the acceptance among mathematicians of set
- >theory was (on the whole) due to its mathematical usefulness, not to their
- >perceiving it as a means of interpreting and justifying existing
- >mathematics.
- >
- > In view of your current emphasis on terminology, it's not clear to what
- >extent you disagree with this.
-
- Can we split mathematicians into the chiefs and the indians, or since
- that's politically incorrect these days, the officers and the troops?
- The officers are focused on the central problems of mathematics *and*
- at least some of their applications, even when they seem to be off
- doing hopelessly pure mathematics. The troops carry on, enjoying
- themselves, instructing others, but generally paying close attention to
- the direction the officers seem to be going in and not straying too far
- away from them. Granted this is a caricature, maybe even an offensive
- one to some, but it serves the following purpose.
-
- If so, then I think we can resolve our difference by saying that you
- were talking about individual miscellaneous users of set theory, while
- I had in mind the mathematicians one reads about in Dauben's book, who
- for the most part sounded like officers who cared deeply about the
- foundational role of set theory, whether in addition to or as part of
- its mathematical use.
-
- What I said in effect was that the army was attacking a strategic
- target. You contradicted this by observing that the troops were
- blowing up bridges, digging trenches, etc. I've already given some
- evidence for the former, and I'm sure you're right about the latter
- (though I should point out that you haven't responded to my request for
- actual names after I responded to yours---perhaps forgiveable since
- it's the officers who get remembered).
-
- Foundations does have its own troops these days, but not I think prior
- to the turn of the century. (I'm not sure in what category to put
- Zermelo, was he an officer in 1904 or just an NCO?)
-
- One might ask, if the mathematical community is an army, who or what
- are they fighting (besides congress)?
-
- I view mathematics as war against inefficient thought. Not against
- ignorance, ignorance is not the real enemy. Knowledge is only what we
- think it to be, it has only relative permanence (1+1=2 will probably be
- around longer than CH), and it is loyal to neither side: it can both
- help and hinder efficient thought. The best mathematics is that which
- helps us all think more clearly.
-
- --
- ======================================================| God found the positive
- Vaughan Pratt pratt@cs.Stanford.EDU 415-494-2545 | integers, zero was
- ======================================================| there when He arrived.
-