Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.notnot

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