Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.falsezeroand

~~~~(q || ~~p) || F

⇒ logic.propositional.falsezeroor

~~~~(q || ~~p)

⇒ logic.propositional.notnot

~~(q || ~~p)

⇒ logic.propositional.notnot

q || ~~p

⇒ logic.propositional.notnot

q || p