Nothing / Angry Nun

Today's lesson in NOTHING, brought to you (in a roundabout way) by EdSanders of the Fugs

IF

(Everything is true) NOT= (Nothing is true)

THEN

Everything is true + Nothing is true = Everything is Nothing
Everything is true - Nothing is true = Nothing is Everything

AND

Everything is true X Nothing is true = Everything squared
Everything is true / Nothing is true = Nothing squared