Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

~(q -> ~(~r || ~r)) || q || r

⇒ logic.propositional.idempor

~(q -> ~~r) || q || r

⇒ logic.propositional.notnot

~(q -> r) || q || r