Date: Sep 17, 1999 10:08 PM Author: Chuck Cadman Subject: Re: -1 x -1 ?
Dale Henderson wrote in message <firstname.lastname@example.org>...
>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.