∀ (l₁ l₁₁ l₁₂ : Lean.Level) (h : l₁ = l₁₁.imax l₁₂) (k₁ : ℕ) (l₂ l₂₁ l₂₂ : Lean.Level) (h_1 : l₂ = l₂₁.imax l₂₂)
  (k₂ : ℕ),
  (invImage
        (fun x =>
          PSigma.casesOn x fun a a_1 => PSigma.casesOn a_1 fun a_2 a_3 => PSigma.casesOn a_3 fun a_4 a_5 => (a, a_4))
        Prod.instWellFoundedRelation).1
    ⟨l₁₁, ⟨0, ⟨l₂₁, 0⟩⟩⟩ ⟨namedPattern l₁ (l₁₁.imax l₁₂) h, ⟨k₁, ⟨namedPattern l₂ (l₂₁.imax l₂₂) h_1, k₂⟩⟩⟩