Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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