Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished
~(~(q /\ q) /\ ~(~r /\ ~r)) /\ (p || q) /\ ~q
logic.propositional.idempand
~(~q /\ ~(~r /\ ~r)) /\ (p || q) /\ ~q
logic.propositional.idempand
~(~q /\ ~~r) /\ (p || q) /\ ~q
logic.propositional.notnot
~(~q /\ r) /\ (p || q) /\ ~q
logic.propositional.demorganand
(~~q || ~r) /\ (p || q) /\ ~q
logic.propositional.notnot
(q || ~r) /\ (p || q) /\ ~q