Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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