∀ {α : Type u_1} {l : List α} (funType_1 : (x : List (List α)) → l ∈ x → Prop)
  (motive : (x : List (List α)) → (x_1 : l ∈ x) → List.Mem.below x_1 → Prop) (x : List (List α)) (x_1 : l ∈ x)
  (below : List.Mem.below x_1),
  (∀ (l' : List α) (tail : List (List α)) (h : l ∈ l' :: tail) (h_1 : List.Mem.below h), motive (l' :: tail) h h_1) →
    motive x x_1 below