Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

(p /\ (r <-> p)) || (q /\ T /\ (r <-> p))

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.defequiv

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