Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
(F /\ (F || r)) || (~q -> ~~p)
⇒ logic.propositional.absorpandF || (~q -> ~~p)
⇒ logic.propositional.falsezeroor~q -> ~~p
⇒ logic.propositional.notnot~q -> p
⇒ logic.propositional.defimpl~~q || p
⇒ logic.propositional.notnotq || p