Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.gendemorganor

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

⇒ logic.propositional.notnot

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