Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.falsezeroor

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.absorpor

~((q -> r) || (q -> r)) || q || r || q || r