Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.notnot

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