5. (set equality) Let S = {I ER: 2(1 ) >0}. Prove that S = (0,1), by proving Sc(0,1) and (0.1) CS. (0,1) is the open interval of the real number line between 0 and 1, but not including 0 or 1. That is, (0, 1) = {TER: >0 and