DIP 08 - Mathematical Morphology (1) - definitions and basic operators

[@davidstreuli5915]

I think at 2:51 the 'AND' should be replaced by an 'OR' and at 12:48 the equal sign should be replaced by 'not-equal'

[@MoacirAntonelliPontiUSP]

Thanks, will do it for the next version :)

[@drilonaliu150]

3:30 should be A - B = { x | x e A AND x not in B}