2. In our lecture notes we used perfect induction to prove the first of DeMorgan's theorems. This time use perfect induction to prove the dual DeMorgan's theorems. Write a truth

table that has values for the ordered pair X, Y on the left as inputs, as well as the left and right side of the theorem to the right. Do not attempt to simplify the theorem. (X·Y)' = X'+ Y'