Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.notnot

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