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