Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
(F /\ r) || (~(F || p) -> q)
⇒ logic.propositional.falsezeroandF || (~(F || p) -> q)
⇒ logic.propositional.falsezeroor~(F || p) -> q
⇒ logic.propositional.falsezeroor~p -> q
⇒ logic.propositional.defimpl~~p || q
⇒ logic.propositional.notnotp || q