Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.falsezeroor

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

⇒ logic.propositional.notnot

(F /\ r) || p || q

⇒ logic.propositional.falsezeroand

F || p || q

⇒ logic.propositional.falsezeroor

p || q