Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.falsezeroor

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

⇒ logic.propositional.notnot

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