Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.falsezeroand

~~p || (~p -> (F || q))

⇒ logic.propositional.falsezeroor

~~p || (~p -> q)

⇒ logic.propositional.defimpl

~~p || ~~p || q

⇒ logic.propositional.idempor

~~p || q

⇒ logic.propositional.notnot

p || q