Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.falsezeroand

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

⇒ logic.propositional.defimpl

~~p || q || ~~p || F || q

⇒ logic.propositional.falsezeroor

~~p || q || ~~p || q

⇒ logic.propositional.notnot

~~p || q || p || q