Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

(T /\ (~(~q || r) || ~(~q || r))) || q || r
logic.propositional.demorganor
(T /\ ((~~q /\ ~r) || ~(~q || r))) || q || r
logic.propositional.demorganor
(T /\ ((~~q /\ ~r) || (~~q /\ ~r))) || q || r
logic.propositional.idempor
(T /\ ~~q /\ ~r) || q || r
logic.propositional.notnot
(T /\ q /\ ~r) || q || r