Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.falsezeroand

~(q || ~~p) -> F

⇒ logic.propositional.notnot

~(q || p) -> F

⇒ logic.propositional.defimpl

~~(q || p) || F

⇒ logic.propositional.falsezeroor

~~(q || p)

⇒ logic.propositional.notnot

q || p