Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

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