Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

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