Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.falsezeroor

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