Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
~~(T /\ ((F /\ r) || ~~p || q))
⇒ logic.propositional.notnotT /\ ((F /\ r) || ~~p || q)
⇒ logic.propositional.truezeroand(F /\ r) || ~~p || q
⇒ logic.propositional.falsezeroandF || ~~p || q
⇒ logic.propositional.falsezeroor~~p || q
⇒ logic.propositional.notnotp || q