Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished
~((F || (q -> r)) /\ (F || T)) || q || r
logic.propositional.falsezeroor
~((q -> r) /\ (F || T)) || q || r
logic.propositional.falsezeroor
~((q -> r) /\ T) || q || r
logic.propositional.truezeroand
~(q -> r) || q || r
logic.propositional.defimpl
~(~q || r) || q || r