Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.absorpor

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