Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

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