1. Let S and T be subsets of a set U. Defining S' = US and T' = U\T, show that (S NT)' = S'UT 2. T/F (circle) If AxB = then A = 0 or B = 0 If A = 0 then P(A) = {0} (Pis power set) There is a bijection from o into itself If Al = n, then A has one subset of size n-1 If A = 5, then P(A2) = 32 If A = {a} then A has one element TF T F T F T F T F TF