Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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