Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

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