Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.absorpor

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