applyTransform t2 (Difference o1 o2) = Difference (applyTransform t2 o1) (applyTransform t2 o2)
applyTransform t2 (Difference o1 o2) = Difference (applyTransform t2 o1) (applyTransform t2 o2)
applyTransform t2 (Difference o1 o2) = Difference (applyTransform t2 o1) (applyTransform t2 o2)