Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

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