Maybe use less math symbols? The definition is right, but reading it is a bit difficult. - William Schmidt
Definitely use less math! You should be a math major if you like it that much. :) Sorry Brian, but I couldn't understand what your definition was saying at all. I don't read math, and I thought the point was to make the definition easy to understand. I have no doubt it is correct, but if I didn't know what a stable system already was, there was no way I'd be anymore enlightened after reading that than I was before. Kudos for effort though! --Emily Blount