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- Newsgroups: sci.math
- Path: sparky!uunet!centerline!noc.near.net!nic.umass.edu!amherst!amherst.edu!djvelleman
- From: djvelleman@amherst.edu
- Subject: Re: You know, the integers (was: Re: Stupid question about FLT)
- Message-ID: <1992Jul22.100121.1@amherst.edu>
- Lines: 25
- Sender: usenet@amhux2.amherst.edu (USENET News System)
- Nntp-Posting-Host: amh.amherst.edu
- Organization: Amherst College, Amherst Mass.
- References: <1992Jul21.132554.152734@ns1.cc.lehigh.edu> <1992Jul21.150931.22637@sics.se>
- Date: Wed, 22 Jul 1992 14:01:21 GMT
-
- In article <1992Jul21.150931.22637@sics.se>, torkel@sics.se (Torkel Franzen) writes:
- > In article <14h7srINNnjc@function.mps.ohio-state.edu> edgar@function.
- > mps.ohio-state.edu (Gerald Edgar) writes:
- >
- > >"You know, THE SETS."
- >
- > More precisely, the cumulative hierarchy of sets. We learn about the
- > natural numbers as generated from 0 by repeated application of the successor
- > function at such an early age, at such a basic level, that it's all but
- > impossible to make it clearer once we're spouting mathematics or philosophy.
- > Set theory is a different matter: even today we can point to Zermelo's
- > "Ueber Grenzzahlen und Mengenbereiche" as a presentation unequaled in
- > clarity of the cumulative hierarchy of sets as a model of ZFC.
-
- I find the cumulative hierarch of sets very *unclear*--especially in
- comparison to the integers. My reaction to the statement, "You know, THE
- INTEGERS" would be "Oh yes, of course, I know those." I'm afraid my reaction
- to "You know, THE SETS" is "No, I don't know them. I know some of them, and
- I have some vague intuitions about others, but at some point the picture gets
- too fuzzy for me to be sure what we're talking aobut."
-
- Dan Velleman
- Dept. of Mathematics and Computer Science
- Amherst College
-
-