___ _ A^A = A A A F 0 0 1 1 1 0 ___ _ _ ═══ A^B = AvB = AvB A B F 0 0 0 0 1 1 1 0 1 1 1 1 ___ AvB A B F 0 0 1 0 1 0 1 0 0 1 1 0 ___ A^B A B F 0 0 1 0 1 1 1 0 1 1 1 0