Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.falsezeroor

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