Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.defimpl

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