Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.demorganor

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