Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
Final term is not finished
(q || (r -> (q || ~r))) /\ ~~((q /\ ~q) || (p /\ ~q))
⇒ logic.propositional.defimpl(q || ~r || q || ~r) /\ ~~((q /\ ~q) || (p /\ ~q))
⇒ logic.propositional.idempor(q || ~r) /\ ~~((q /\ ~q) || (p /\ ~q))