Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.falsezeroor

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