Show that if A ⊂ B, then C – B ⊂ C – A.

Let A = {a, b, c}, B = {x, y}, and C = {0, 1}. Find A × B × C C × B × A C × A × B B × B × B   Let A = {1, 2, 3, 4, 5} and B = {0, 3, 6}. Find A ? B A ∩ B A – B B − A   Let A = {a, b, c, d, e} and B = {a, b, c, d, e, f, g, h}. Find A ? B A ∩ B A – B B − A

Let A = { c, d, f, g} B = { f, j} C= { d, g} Is C C C? True False

Prove that if A, B are disjoint and CC B, then A, C are disjoint. You may assume A, B, C are all non-empty.