Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.notnot

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