Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.demorganand

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.defimpl

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