Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.notnot

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