Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notfalse

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