Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished
~((q || q) -> r) || (T /\ (q || r || ~(q -> r) || q || r))
logic.propositional.truezeroand
~((q || q) -> r) || q || r || ~(q -> r) || q || r
logic.propositional.defimpl
~((q || q) -> r) || q || r || ~(~q || r) || q || r
logic.propositional.demorganor
~((q || q) -> r) || q || r || (~~q /\ ~r) || q || r
logic.propositional.notnot
~((q || q) -> r) || q || r || (q /\ ~r) || q || r
logic.propositional.absorpor
~((q || q) -> r) || q || r || q || r
logic.propositional.idempor
~((q || q) -> r) || q || r