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- Path: sparky!uunet!cs.utexas.edu!news-is-not-mail
- From: turpin@cs.utexas.edu (Russell Turpin)
- Newsgroups: sci.logic
- Subject: How does one formalize "small" mathematical theories?
- Date: 13 Sep 1992 14:13:38 -0500
- Organization: U Texas Dept of Computer Sciences, Austin TX
- Lines: 19
- Message-ID: <1903t2INNanu@cs.utexas.edu>
- NNTP-Posting-Host: cs.utexas.edu
- Summary: A fuzzy and naive question.
-
- -*----
- The wonderful thing about set theory, of course, is that in it
- one can define almost all the other parts of mathematics: group
- theory, field theory, measure theory, point set topology, etc.
- But if one were writing or using theorem-proving tools to work
- proofs in, say, group theory, one might not want to start with
- the heavy load of ZF.
-
- For some theories, there are classical axiomatizations that stand
- apart from set theory, e.g., arithmetic, real algebra, and plane
- geometry. Curiously, these all have intuitive axiomatizations
- that do not rely on sets, and at least in the case of arithmetic
- and plane geometry, axioms that were stated before set theory was
- developed. But the "natural" axioms for groups seem to rely on
- sets: "a group is a *set* with a binary operator + such that ..."
-
- So how would one axiomatize a "simple" group theory?
-
- Russell
-