Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.demorganand

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

p || q || (p -> q)

⇒ logic.propositional.defimpl

p || q || ~p || q