Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

r || (~(~q || r) /\ T) || q

⇒ logic.propositional.truezeroand

r || ~(~q || r) || q

⇒ logic.propositional.demorganor

r || (~~q /\ ~r) || q

⇒ logic.propositional.notnot

r || (q /\ ~r) || q