∀ {Θ : Type u_1} {𝓧 : Type u_2} {𝓨 : Type u_3} {mΘ : MeasurableSpace Θ} {m𝓧 : MeasurableSpace 𝓧}
  [inst : MeasurableSpace 𝓨] (ℓ : Θ → 𝓨 → ENNReal) (P : ProbabilityTheory.Kernel Θ 𝓧),
  ProbabilityTheory.minimaxRisk ℓ P =
    ⨅ κ, ⨅ (_ : ProbabilityTheory.IsMarkovKernel κ), ⨆ θ, ∫⁻ (y : 𝓨), ℓ θ y ∂(κ.comp P) θ