Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.idempor

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