Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.falsezeroand

p || q || F

⇒ logic.propositional.falsezeroor

p || q