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.notnot

~~p || ~~q

⇒ logic.propositional.notnot

p || ~~q

⇒ logic.propositional.notnot

p || q