intros s H
e : TensorElem
⊢ ∀ (s : List ℕ),
    (List.all [] fun x => decide (inferredShape x = some s)) = true → (List.all [] fun x => hasShape x s) = true
e : TensorElem
s : List ℕ
H : (List.all [] fun x => decide (inferredShape x = some s)) = true
⊢ (List.all [] fun x => hasShape x s) = true