Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.defimpl

F || ~(~q || r) || q || r

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.falsezeroor

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.absorpor

q || r