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- Newsgroups: sci.math
- Path: sparky!uunet!mcsun!ieunet!tcdcs!maths.tcd.ie!tim
- From: tim@maths.tcd.ie (Timothy Murphy)
- Subject: Re: Fermat's Last Theorem and the FAQ
- Message-ID: <1992Nov24.032416.16713@maths.tcd.ie>
- Organization: Dept. of Maths, Trinity College, Dublin, Ireland.
- References: <rkaivola.722428224@mits> <1992Nov22.132034.24496@ms.uky.edu> <rkaivola.722554636@mits>
- Date: Tue, 24 Nov 1992 03:24:16 GMT
- Lines: 19
-
- rkaivola@mits.mdata.fi (Risto Kaivola) writes:
-
-
- >Meanwhile, here is my proof that there
- >are no odd x,y such that for an even n >=2,
- >(A) (x**n) + (y**n) = (z**n) for an integer z:
-
- I didn't understand your proof.
- But isn't the result obvious anyway.
- It is sufficient to prove it for n = 2,
- since x^n = (x^{n/2})^2 ;
- and in that case it is obvious by working modulo 4,
- since odd^2 = 1 mod 4, even^2 = 0 mod 4.
-
- --
- Timothy Murphy
- e-mail: tim@maths.tcd.ie
- tel: +353-1-2842366
- s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
-