Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.idempand

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