Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.notfalse

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