Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

(~~~q /\ ~((p -> q) || ~~(p -> q))) -> p

⇒ logic.propositional.notnot

(~~~q /\ ~((p -> q) || (p -> q))) -> p

⇒ logic.propositional.defimpl

(~~~q /\ ~((p -> q) || ~p || q)) -> p