∀ {Ω : Type u_1} {m0 : MeasurableSpace Ω} {μ : MeasureTheory.Measure Ω} {ℱ : MeasureTheory.Filtration ℕ m0} {a b : ℝ}
  {f : ℕ → Ω → ℝ} {R : NNReal} [MeasureTheory.IsFiniteMeasure μ],
  MeasureTheory.Submartingale f ℱ μ →
    (∀ (n : ℕ), MeasureTheory.eLpNorm (f n) 1 μ ≤ ↑R) → a < b → ∀ᵐ (ω : Ω) ∂μ, MeasureTheory.upcrossings a b f ω < ⊤