Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.notnot

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