Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

((q -> r) || F) -> (q || (T /\ r))

⇒ logic.propositional.defimpl

(~q || r || F) -> (q || (T /\ r))

⇒ logic.propositional.falsezeroor

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