∀ {α : Type u_1} {β : α → Type u_2} [inst : Hashable α] (self : Array (Std.DHashMap.Internal.AssocList α β)) (i : USize)
  (hi : i.toNat < self.size) (h₀ : 0 < self.size) (l₁ l₂ : List (Std.DHashMap.Internal.AssocList α β)),
  l₁.length = i.toNat →
    ∀ (k : α),
      (↑(Std.DHashMap.Internal.mkIdx self.size ⋯ (hash k))).toNat = i.toNat →
        ∀ (j : ℕ), (↑(Std.DHashMap.Internal.mkIdx self.size h₀ (hash k))).toNat = j + 1 + l₁.length → False