Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished
(F /\ r) || (T /\ (~~(T /\ p) || q))
logic.propositional.notnot
(F /\ r) || (T /\ ((T /\ p) || q))
logic.propositional.truezeroand
(F /\ r) || (T /\ (p || q))