Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.notnot

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