2. (10 points] Symbology (a) Recall that is the eXclusive OR symbol with the truth table: P Q 0 2 0 0 0 1 1 1 1 0 1 1 0 Write down an equivalent proposition to P O Q using only the V, 1, and - operations. (b) Let H be a new symbol for "if and only if with the truth table: P 0 0 Q P HQ 0 1 1 0 0 0 1 1 1 1 Write down an equivalent proposition to P H Q using only the V, 1, and operations