Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.truezeroand

~(q || (p -> q)) -> p

⇒ logic.propositional.defimpl

~~(q || (p -> q)) || p

⇒ logic.propositional.notnot

q || (p -> q) || p

⇒ logic.propositional.defimpl

q || ~p || q || p