Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

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

⇒ logic.propositional.notnot

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