Date: Sep 17, 1999 10:08 PM
Author: Chuck Cadman
Subject: Re: -1 x -1 ?




Dale Henderson wrote in message <7rudbk$u6l$1@nnrp1.deja.com>...
>
>I've seen a few proofs on this thread that make unfounded assumtions.
>One assumes the uniqness of inverses and another assumes 0x=0.
>Ironically the result (-a)b=-ab is requred to prove 0x=0.


That's not really true. 0 = 0x - 0x = (0+0)x - 0x = 0x + 0x - 0x = 0x.