Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.absorpand

p || F || q

⇒ logic.propositional.falsezeroor

p || q