Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.truezeroand

~(~q || r || F) || q || r

⇒ logic.propositional.falsezeroor

~(~q || r) || q || r

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.notnot

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