Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.defimpl

q || ~~(~p || q || ~p || q) || p

⇒ logic.propositional.idempor

q || ~~(~p || q) || p