On Wed, 2 Jul 2008, Geoffrey Spear wrote: > On Wed, Jul 2, 2008 at 7:39 PM, Roger Hicks <[EMAIL PROTECTED]> wrote: >>> No, 4 - 4 is 0, in any base arithmetic. >>> >> Oops... >> >> But not in binary :) > > If you're using a 4 in your binary, you're probably doing something > horribly wrong.
Obviously in binary, 4 is an arbitrary symbol like X, so 4 - 4 is 0, even in binary. -G.
