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fpvandoorn/carleson
Source indexedlemma · leanprover/lean4:v4.32.0

MeasureTheory.eLpNorm_truncCompl_anti

Carleson.ToMathlib.RealInterpolation.Misc · Carleson/ToMathlib/RealInterpolation/Misc.lean:610 to 620

Mathematical statement

Exact Lean statement

lemma eLpNorm_truncCompl_anti (hf : eLpNorm f 1 μ ≠ ⊤) (mf : AEStronglyMeasurable f μ) :
    Antitone (fun s ↦ eLpNorm (truncCompl f s) p μ)

Complete declaration

Lean source

Canonical source
Full Lean sourceLean 4
lemma eLpNorm_truncCompl_anti (hf : eLpNorm f 1 μ  ⊤) (mf : AEStronglyMeasurable f μ) :    Antitone (fun s  eLpNorm (truncCompl f s) p μ) := by  intro a _b hab  have : ᵐ x ∂μ, ‖f x‖ₑ := by    rw [eLpNorm_one_eq_lintegral_enorm] at hf    simp_rw [ae_iff, not_ne_iff]; exact measure_eq_top_of_lintegral_ne_top mf.enorm hf  have : ᵐ x ∂μ, ‖trunc f a x‖ₑ := by    refine this.mono fun x hx  ?_    rw [trunc]    split_ifs; exacts [hx, by simp]  exact eLpNorm_mono_enorm_ae <| this.mono fun x hx  truncCompl_anti hab hx