Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.truezeroand

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