Originally posted by Nordlys
Hmm... "There is no such thing as a -0"?
The weather report sometimes says "-0C".
Also it can be shown that -0 == 0 like so:
-0
= -0 + (1 + -1) (by 1 + -1 = 0)
= -0 + -1 + 1 (by ass. and com. of addition)
= -(0 + 1) + 1 (by distribution)
= -1 + 1 (by 0 + 1 = 1)
= 0