Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » sci.math.* » sci.math.independent

Topic: -1 x -1 ?
Replies: 29   Last Post: May 13, 2009 9:01 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Chuck Cadman

Posts: 16
Registered: 12/12/04
Re: -1 x -1 ?
Posted: Sep 17, 1999 10:08 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply




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.








Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.