Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.defimpl

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