Section Typing.
Variable (E: list deq).
Hint Resolve Vars__de_in : core.
Definition Gamma__dwk := repeat (alpha → (alpha → alpha) → alpha) (S (Sum (Vars__de E))).

Lemma Gamma__dwk_nth x:
x ∈ Vars__de E -> nth Gamma__dwk x = Some (alpha → (alpha → alpha) → alpha).