Date: Nov 29, 2012 7:24 AM Author: Peter Duveen Subject: Re: Some important demonstrations on negative numbers Jonathan, if negative numbers take so much explanation, maybe we should just get rid of them. It's starting to affect our GDP and national security. I am a fan of your syntactical methods, even though I have not yet mastered them. Perhaps we need to "formalize" them, that is, get some notation for them. Then we can formalize the consequences as well.