Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
Final term is not finished
~(~~(q -> r) /\ T) || ~~q || r
⇒ logic.propositional.truezeroand~~~(q -> r) || ~~q || r
⇒ logic.propositional.notnot~(q -> r) || ~~q || r
⇒ logic.propositional.defimpl~(~q || r) || ~~q || r