3. Fill in the heading of the following truth table using any of p, q, ~, -->, <-->, V, and ^.
p q
T T T
T F F
F T F
F F T
Looks like p xnor q
That is p^q v ~p^~q
DeMorgan's Laws can help rearrange things
p q
T T T
T F F
F T F
F F T
That is p^q v ~p^~q
DeMorgan's Laws can help rearrange things