Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notnot

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