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- Newsgroups: sci.math
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- From: dak@messua.informatik.rwth-aachen.de (David Kastrup)
- Subject: Re: You know, the integers (was: Re: Stupid question about FLT)
- Message-ID: <dak.714053498@messua>
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- Organization: Rechnerbetrieb Informatik / RWTH Aachen
- References: <1992Jul21.132554.152734@ns1.cc.lehigh.edu> <1992Jul29.173257.5041@ariel.ec.usf.edu> <1992Aug4.174928.1071@sics.se> <1992Aug11.190119.23518@ariel.ec.usf.edu> <1992Aug16.172642.13398@sics.se>
- Date: 17 Aug 92 12:11:38 GMT
- Lines: 15
-
- torkel@sics.se (Torkel Franzen) writes:
-
-
- > What is PA? My explanation of the integers is simple: the integers
- >are 0, s(0), s(s(0)) and so on. Any obscurity or ambiguity that you
- >find in this explanation carries over to any explanation of what is
- >meant by "PA".
-
- Wow, quite a few less features (axioms) than I need.
- At least cyclelessness would be desirable, or else you end up with
- a finite set. And some other things would be nice too, as someone
- called Peano has figured out quite a while ago.
-
- The above corresponds more or less to the axiom justifying
- proofs by complete induction.
-