Answer
The table is in fact displayed to exhibit the duality. The two domination laws are duals of each other, the two identity laws are duals of each other, etc. The double negation law is the only law that is not listed with another law, because it is its its own dual, since there are no occurrences of ∧, ∨, T, or F to replace while making it's dual.
Work Step by Step
Same as above.
