Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.absorpor

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