Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
~~(~~p || (F /\ (F || r)) || q)
⇒ logic.propositional.notnot~~p || (F /\ (F || r)) || q
⇒ logic.propositional.absorpand~~p || F || q
⇒ logic.propositional.falsezeroor~~p || q
⇒ logic.propositional.notnotp || q