Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.absorpand

(q || ~~p) /\ T

⇒ logic.propositional.truezeroand

q || ~~p

⇒ logic.propositional.notnot

q || p