Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.idempand

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