Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.defimpl

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

⇒ logic.propositional.demorganor

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.truezeroand

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