measure_theory.function.conditional_expectation.unique ⟷ Mathlib.MeasureTheory.Function.ConditionalExpectation.Unique

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

@@ -48,8 +48,8 @@ section UniquenessOfConditionalExpectation
 /-! ## Uniqueness of the conditional expectation -/
 
 
-#print MeasureTheory.lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero /-
-theorem lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero (hm : m ≤ m0) (f : lpMeas E' 𝕜 m p μ)
+#print MeasureTheory.lpMeas.ae_eq_zero_of_forall_setIntegral_eq_zero /-
+theorem lpMeas.ae_eq_zero_of_forall_setIntegral_eq_zero (hm : m ≤ m0) (f : lpMeas E' 𝕜 m p μ)
     (hp_ne_zero : p ≠ 0) (hp_ne_top : p ≠ ∞)
     (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hf_zero : ∀ s : Set α, measurable_set[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = 0) : f =ᵐ[μ] 0 :=
@@ -65,13 +65,13 @@ theorem lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero (hm : m ≤ m0) (f : lp
     have hfg_restrict : f =ᵐ[μ.restrict s] g := ae_restrict_of_ae hfg
     rw [integral_congr_ae hfg_restrict.symm]
     exact hf_zero s hs hμs
-#align measure_theory.Lp_meas.ae_eq_zero_of_forall_set_integral_eq_zero MeasureTheory.lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero
+#align measure_theory.Lp_meas.ae_eq_zero_of_forall_set_integral_eq_zero MeasureTheory.lpMeas.ae_eq_zero_of_forall_setIntegral_eq_zero
 -/
 
 variable (𝕜)
 
-#print MeasureTheory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero' /-
-theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E' p μ)
+#print MeasureTheory.Lp.ae_eq_zero_of_forall_setIntegral_eq_zero' /-
+theorem Lp.ae_eq_zero_of_forall_setIntegral_eq_zero' (hm : m ≤ m0) (f : Lp E' p μ)
     (hp_ne_zero : p ≠ 0) (hp_ne_top : p ≠ ∞)
     (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hf_zero : ∀ s : Set α, measurable_set[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = 0)
@@ -89,12 +89,12 @@ theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E'
     have hfg_restrict : f =ᵐ[μ.restrict s] f_meas := ae_restrict_of_ae hf_f_meas
     rw [integral_congr_ae hfg_restrict.symm]
     exact hf_zero s hs hμs
-#align measure_theory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero' MeasureTheory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero'
+#align measure_theory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero' MeasureTheory.Lp.ae_eq_zero_of_forall_setIntegral_eq_zero'
 -/
 
-#print MeasureTheory.Lp.ae_eq_of_forall_set_integral_eq' /-
+#print MeasureTheory.Lp.ae_eq_of_forall_setIntegral_eq' /-
 /-- **Uniqueness of the conditional expectation** -/
-theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (hp_ne_zero : p ≠ 0)
+theorem Lp.ae_eq_of_forall_setIntegral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (hp_ne_zero : p ≠ 0)
     (hp_ne_top : p ≠ ∞) (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn g s μ)
     (hfg : ∀ s : Set α, measurable_set[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
@@ -118,13 +118,13 @@ theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (
   exact
     Lp.ae_eq_zero_of_forall_set_integral_eq_zero' 𝕜 hm (f - g) hp_ne_zero hp_ne_top hfg_int hfg'
       hfg_meas
-#align measure_theory.Lp.ae_eq_of_forall_set_integral_eq' MeasureTheory.Lp.ae_eq_of_forall_set_integral_eq'
+#align measure_theory.Lp.ae_eq_of_forall_set_integral_eq' MeasureTheory.Lp.ae_eq_of_forall_setIntegral_eq'
 -/
 
 variable {𝕜}
 
-#print MeasureTheory.ae_eq_of_forall_set_integral_eq_of_sigmaFinite' /-
-theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFinite (μ.trim hm)]
+#print MeasureTheory.ae_eq_of_forall_setIntegral_eq_of_sigmaFinite' /-
+theorem ae_eq_of_forall_setIntegral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFinite (μ.trim hm)]
     {f g : α → F'} (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn g s μ)
     (hfg_eq : ∀ s : Set α, measurable_set[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
@@ -160,7 +160,7 @@ theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFi
       integral_congr_ae (ae_restrict_of_ae hgm.ae_eq_mk.symm)]
     exact hfg_eq s hs hμs
   exact ae_eq_of_forall_set_integral_eq_of_sigma_finite hf_mk_int_finite hg_mk_int_finite hfg_mk_eq
-#align measure_theory.ae_eq_of_forall_set_integral_eq_of_sigma_finite' MeasureTheory.ae_eq_of_forall_set_integral_eq_of_sigmaFinite'
+#align measure_theory.ae_eq_of_forall_set_integral_eq_of_sigma_finite' MeasureTheory.ae_eq_of_forall_setIntegral_eq_of_sigmaFinite'
 -/
 
 end UniquenessOfConditionalExpectation

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

@@ -3,8 +3,8 @@ Copyright (c) 2021 Rémy Degenne. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémy Degenne
 -/
-import MeasureTheory.Function.AeEqOfIntegral
-import MeasureTheory.Function.ConditionalExpectation.AeMeasurable
+import MeasureTheory.Function.AEEqOfIntegral
+import MeasureTheory.Function.ConditionalExpectation.AEMeasurable
 
 #align_import measure_theory.function.conditional_expectation.unique from "leanprover-community/mathlib"@"8af7091a43227e179939ba132e54e54e9f3b089a"
 
@@ -34,7 +34,7 @@ open scoped ENNReal MeasureTheory
 
 namespace MeasureTheory
 
-variable {α E' F' 𝕜 : Type _} {p : ℝ≥0∞} {m m0 : MeasurableSpace α} {μ : Measure α} [IsROrC 𝕜]
+variable {α E' F' 𝕜 : Type _} {p : ℝ≥0∞} {m m0 : MeasurableSpace α} {μ : Measure α} [RCLike 𝕜]
   -- 𝕜 for ℝ or ℂ
   -- E' for an inner product space on which we compute integrals
   [NormedAddCommGroup E']

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

@@ -135,7 +135,7 @@ theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFi
     ∀ s, measurable_set[m] s → μ.trim hm s < ∞ → @integrable_on _ _ m _ (hfm.mk f) s (μ.trim hm) :=
     by
     intro s hs hμs
-    rw [trim_measurable_set_eq hm hs] at hμs 
+    rw [trim_measurable_set_eq hm hs] at hμs
     rw [integrable_on, restrict_trim hm _ hs]
     refine' integrable.trim hm _ hfm.strongly_measurable_mk
     exact integrable.congr (hf_int_finite s hs hμs) (ae_restrict_of_ae hfm.ae_eq_mk)
@@ -143,7 +143,7 @@ theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFi
     ∀ s, measurable_set[m] s → μ.trim hm s < ∞ → @integrable_on _ _ m _ (hgm.mk g) s (μ.trim hm) :=
     by
     intro s hs hμs
-    rw [trim_measurable_set_eq hm hs] at hμs 
+    rw [trim_measurable_set_eq hm hs] at hμs
     rw [integrable_on, restrict_trim hm _ hs]
     refine' integrable.trim hm _ hgm.strongly_measurable_mk
     exact integrable.congr (hg_int_finite s hs hμs) (ae_restrict_of_ae hgm.ae_eq_mk)
@@ -153,7 +153,7 @@ theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFi
         μ.trim hm s < ∞ → ∫ x in s, hfm.mk f x ∂μ.trim hm = ∫ x in s, hgm.mk g x ∂μ.trim hm :=
     by
     intro s hs hμs
-    rw [trim_measurable_set_eq hm hs] at hμs 
+    rw [trim_measurable_set_eq hm hs] at hμs
     rw [restrict_trim hm _ hs, ← integral_trim hm hfm.strongly_measurable_mk, ←
       integral_trim hm hgm.strongly_measurable_mk,
       integral_congr_ae (ae_restrict_of_ae hfm.ae_eq_mk.symm),

mathlib commit https://github.com/leanprover-community/mathlib/commit/ce64cd319bb6b3e82f31c2d38e79080d377be451

@@ -3,8 +3,8 @@ Copyright (c) 2021 Rémy Degenne. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémy Degenne
 -/
-import Mathbin.MeasureTheory.Function.AeEqOfIntegral
-import Mathbin.MeasureTheory.Function.ConditionalExpectation.AeMeasurable
+import MeasureTheory.Function.AeEqOfIntegral
+import MeasureTheory.Function.ConditionalExpectation.AeMeasurable
 
 #align_import measure_theory.function.conditional_expectation.unique from "leanprover-community/mathlib"@"8af7091a43227e179939ba132e54e54e9f3b089a"
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/8ea5598db6caeddde6cb734aa179cc2408dbd345

@@ -2,15 +2,12 @@
 Copyright (c) 2021 Rémy Degenne. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémy Degenne
-
-! This file was ported from Lean 3 source module measure_theory.function.conditional_expectation.unique
-! leanprover-community/mathlib commit 8af7091a43227e179939ba132e54e54e9f3b089a
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.MeasureTheory.Function.AeEqOfIntegral
 import Mathbin.MeasureTheory.Function.ConditionalExpectation.AeMeasurable
 
+#align_import measure_theory.function.conditional_expectation.unique from "leanprover-community/mathlib"@"8af7091a43227e179939ba132e54e54e9f3b089a"
+
 /-!
 # Uniqueness of the conditional expectation
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/bf9bbbcf0c1c1ead18280b0d010e417b10abb1b6

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémy Degenne
 
 ! This file was ported from Lean 3 source module measure_theory.function.conditional_expectation.unique
-! leanprover-community/mathlib commit d8bbb04e2d2a44596798a9207ceefc0fb236e41e
+! leanprover-community/mathlib commit 8af7091a43227e179939ba132e54e54e9f3b089a
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -14,6 +14,9 @@ import Mathbin.MeasureTheory.Function.ConditionalExpectation.AeMeasurable
 /-!
 # Uniqueness of the conditional expectation
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 Two Lp functions `f, g` which are almost everywhere strongly measurable with respect to a σ-algebra
 `m` and verify `∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ` for all `m`-measurable sets `s` are equal
 almost everywhere. This proves the uniqueness of the conditional expectation, which is not yet

mathlib commit https://github.com/leanprover-community/mathlib/commit/8efcf8022aac8e01df8d302dcebdbc25d6a886c8

@@ -48,6 +48,7 @@ section UniquenessOfConditionalExpectation
 /-! ## Uniqueness of the conditional expectation -/
 
 
+#print MeasureTheory.lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero /-
 theorem lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero (hm : m ≤ m0) (f : lpMeas E' 𝕜 m p μ)
     (hp_ne_zero : p ≠ 0) (hp_ne_top : p ≠ ∞)
     (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
@@ -65,9 +66,11 @@ theorem lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero (hm : m ≤ m0) (f : lp
     rw [integral_congr_ae hfg_restrict.symm]
     exact hf_zero s hs hμs
 #align measure_theory.Lp_meas.ae_eq_zero_of_forall_set_integral_eq_zero MeasureTheory.lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero
+-/
 
 variable (𝕜)
 
+#print MeasureTheory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero' /-
 theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E' p μ)
     (hp_ne_zero : p ≠ 0) (hp_ne_top : p ≠ ∞)
     (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
@@ -87,7 +90,9 @@ theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E'
     rw [integral_congr_ae hfg_restrict.symm]
     exact hf_zero s hs hμs
 #align measure_theory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero' MeasureTheory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero'
+-/
 
+#print MeasureTheory.Lp.ae_eq_of_forall_set_integral_eq' /-
 /-- **Uniqueness of the conditional expectation** -/
 theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (hp_ne_zero : p ≠ 0)
     (hp_ne_top : p ≠ ∞) (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
@@ -114,10 +119,12 @@ theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (
     Lp.ae_eq_zero_of_forall_set_integral_eq_zero' 𝕜 hm (f - g) hp_ne_zero hp_ne_top hfg_int hfg'
       hfg_meas
 #align measure_theory.Lp.ae_eq_of_forall_set_integral_eq' MeasureTheory.Lp.ae_eq_of_forall_set_integral_eq'
+-/
 
 variable {𝕜}
 
-theorem ae_eq_of_forall_set_integral_eq_of_sigma_finite' (hm : m ≤ m0) [SigmaFinite (μ.trim hm)]
+#print MeasureTheory.ae_eq_of_forall_set_integral_eq_of_sigmaFinite' /-
+theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFinite (μ.trim hm)]
     {f g : α → F'} (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn g s μ)
     (hfg_eq : ∀ s : Set α, measurable_set[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
@@ -153,7 +160,8 @@ theorem ae_eq_of_forall_set_integral_eq_of_sigma_finite' (hm : m ≤ m0) [SigmaF
       integral_congr_ae (ae_restrict_of_ae hgm.ae_eq_mk.symm)]
     exact hfg_eq s hs hμs
   exact ae_eq_of_forall_set_integral_eq_of_sigma_finite hf_mk_int_finite hg_mk_int_finite hfg_mk_eq
-#align measure_theory.ae_eq_of_forall_set_integral_eq_of_sigma_finite' MeasureTheory.ae_eq_of_forall_set_integral_eq_of_sigma_finite'
+#align measure_theory.ae_eq_of_forall_set_integral_eq_of_sigma_finite' MeasureTheory.ae_eq_of_forall_set_integral_eq_of_sigmaFinite'
+-/
 
 end UniquenessOfConditionalExpectation
 
@@ -161,6 +169,7 @@ section IntegralNormLe
 
 variable {s : Set α}
 
+#print MeasureTheory.integral_norm_le_of_forall_fin_meas_integral_eq /-
 /-- Let `m` be a sub-σ-algebra of `m0`, `f` a `m0`-measurable function and `g` a `m`-measurable
 function, such that their integrals coincide on `m`-measurable sets with finite measure.
 Then `∫ x in s, ‖g x‖ ∂μ ≤ ∫ x in s, ‖f x‖ ∂μ` on all `m`-measurable sets with finite measure. -/
@@ -193,7 +202,9 @@ theorem integral_norm_le_of_forall_fin_meas_integral_eq (hm : m ≤ m0) {f g : 
       measure.restrict_restrict h_meas_nonpos_f]
     exact set_integral_nonpos_le (hm _ h_meas_nonpos_g) hf hfi
 #align measure_theory.integral_norm_le_of_forall_fin_meas_integral_eq MeasureTheory.integral_norm_le_of_forall_fin_meas_integral_eq
+-/
 
+#print MeasureTheory.lintegral_nnnorm_le_of_forall_fin_meas_integral_eq /-
 /-- Let `m` be a sub-σ-algebra of `m0`, `f` a `m0`-measurable function and `g` a `m`-measurable
 function, such that their integrals coincide on `m`-measurable sets with finite measure.
 Then `∫⁻ x in s, ‖g x‖₊ ∂μ ≤ ∫⁻ x in s, ‖f x‖₊ ∂μ` on all `m`-measurable sets with finite
@@ -209,6 +220,7 @@ theorem lintegral_nnnorm_le_of_forall_fin_meas_integral_eq (hm : m ≤ m0) {f g
   · exact integral_norm_le_of_forall_fin_meas_integral_eq hm hf hfi hg hgi hgf hs hμs
   · exact integral_nonneg fun x => norm_nonneg _
 #align measure_theory.lintegral_nnnorm_le_of_forall_fin_meas_integral_eq MeasureTheory.lintegral_nnnorm_le_of_forall_fin_meas_integral_eq
+-/
 
 end IntegralNormLe
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/9fb8964792b4237dac6200193a0d533f1b3f7423

@@ -66,8 +66,6 @@ theorem lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero (hm : m ≤ m0) (f : lp
     exact hf_zero s hs hμs
 #align measure_theory.Lp_meas.ae_eq_zero_of_forall_set_integral_eq_zero MeasureTheory.lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero
 
-include 𝕜
-
 variable (𝕜)
 
 theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E' p μ)
@@ -119,8 +117,6 @@ theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (
 
 variable {𝕜}
 
-omit 𝕜
-
 theorem ae_eq_of_forall_set_integral_eq_of_sigma_finite' (hm : m ≤ m0) [SigmaFinite (μ.trim hm)]
     {f g : α → F'} (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn g s μ)

mathlib commit https://github.com/leanprover-community/mathlib/commit/9fb8964792b4237dac6200193a0d533f1b3f7423

@@ -74,7 +74,7 @@ theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E'
     (hp_ne_zero : p ≠ 0) (hp_ne_top : p ≠ ∞)
     (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hf_zero : ∀ s : Set α, measurable_set[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = 0)
-    (hf_meas : AeStronglyMeasurable' m f μ) : f =ᵐ[μ] 0 :=
+    (hf_meas : AEStronglyMeasurable' m f μ) : f =ᵐ[μ] 0 :=
   by
   let f_meas : Lp_meas E' 𝕜 m p μ := ⟨f, hf_meas⟩
   have hf_f_meas : f =ᵐ[μ] f_meas := by simp only [coeFn_coe_base', Subtype.coe_mk]
@@ -95,7 +95,7 @@ theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (
     (hp_ne_top : p ≠ ∞) (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn g s μ)
     (hfg : ∀ s : Set α, measurable_set[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
-    (hf_meas : AeStronglyMeasurable' m f μ) (hg_meas : AeStronglyMeasurable' m g μ) : f =ᵐ[μ] g :=
+    (hf_meas : AEStronglyMeasurable' m f μ) (hg_meas : AEStronglyMeasurable' m g μ) : f =ᵐ[μ] g :=
   by
   suffices h_sub : ⇑(f - g) =ᵐ[μ] 0
   · rw [← sub_ae_eq_zero]; exact (Lp.coe_fn_sub f g).symm.trans h_sub
@@ -125,7 +125,7 @@ theorem ae_eq_of_forall_set_integral_eq_of_sigma_finite' (hm : m ≤ m0) [SigmaF
     {f g : α → F'} (hf_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, measurable_set[m] s → μ s < ∞ → IntegrableOn g s μ)
     (hfg_eq : ∀ s : Set α, measurable_set[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
-    (hfm : AeStronglyMeasurable' m f μ) (hgm : AeStronglyMeasurable' m g μ) : f =ᵐ[μ] g :=
+    (hfm : AEStronglyMeasurable' m f μ) (hgm : AEStronglyMeasurable' m g μ) : f =ᵐ[μ] g :=
   by
   rw [← ae_eq_trim_iff_of_ae_strongly_measurable' hm hfm hgm]
   have hf_mk_int_finite :

mathlib commit https://github.com/leanprover-community/mathlib/commit/9fb8964792b4237dac6200193a0d533f1b3f7423

Done with a global search and replace, and then (to fix the #align lines), replace (#align \S*)setIntegral with $1set_integral.

@@ -19,9 +19,9 @@ defined in this file but is introduced in
 
 ## Main statements
 
-* `Lp.ae_eq_of_forall_set_integral_eq'`: two `Lp` functions verifying the equality of integrals
+* `Lp.ae_eq_of_forall_setIntegral_eq'`: two `Lp` functions verifying the equality of integrals
   defining the conditional expectation are equal.
-* `ae_eq_of_forall_set_integral_eq_of_sigma_finite'`: two functions verifying the equality of
+* `ae_eq_of_forall_setIntegral_eq_of_sigma_finite'`: two functions verifying the equality of
   integrals defining the conditional expectation are equal almost everywhere.
   Requires `[SigmaFinite (μ.trim hm)]`.
 
@@ -46,7 +46,7 @@ section UniquenessOfConditionalExpectation
 
 /-! ## Uniqueness of the conditional expectation -/
 
-theorem lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero (hm : m ≤ m0) (f : lpMeas E' 𝕜 m p μ)
+theorem lpMeas.ae_eq_zero_of_forall_setIntegral_eq_zero (hm : m ≤ m0) (f : lpMeas E' 𝕜 m p μ)
     (hp_ne_zero : p ≠ 0) (hp_ne_top : p ≠ ∞)
     -- Porting note: needed to add explicit casts in the next two hypotheses
     (hf_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn (f : Lp E' p μ) s μ)
@@ -56,7 +56,7 @@ theorem lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero (hm : m ≤ m0) (f : lp
   refine' hfg.trans _
   -- Porting note: added
   unfold Filter.EventuallyEq at hfg
-  refine' ae_eq_zero_of_forall_set_integral_eq_of_finStronglyMeasurable_trim hm _ _ hg_sm
+  refine' ae_eq_zero_of_forall_setIntegral_eq_of_finStronglyMeasurable_trim hm _ _ hg_sm
   · intro s hs hμs
     have hfg_restrict : f =ᵐ[μ.restrict s] g := ae_restrict_of_ae hfg
     rw [IntegrableOn, integrable_congr hfg_restrict.symm]
@@ -65,11 +65,15 @@ theorem lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero (hm : m ≤ m0) (f : lp
     have hfg_restrict : f =ᵐ[μ.restrict s] g := ae_restrict_of_ae hfg
     rw [integral_congr_ae hfg_restrict.symm]
     exact hf_zero s hs hμs
-#align measure_theory.Lp_meas.ae_eq_zero_of_forall_set_integral_eq_zero MeasureTheory.lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero
+#align measure_theory.Lp_meas.ae_eq_zero_of_forall_set_integral_eq_zero MeasureTheory.lpMeas.ae_eq_zero_of_forall_setIntegral_eq_zero
+
+@[deprecated]
+alias lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero :=
+  lpMeas.ae_eq_zero_of_forall_setIntegral_eq_zero -- deprecated on 2024-04-17
 
 variable (𝕜)
 
-theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E' p μ)
+theorem Lp.ae_eq_zero_of_forall_setIntegral_eq_zero' (hm : m ≤ m0) (f : Lp E' p μ)
     (hp_ne_zero : p ≠ 0) (hp_ne_top : p ≠ ∞)
     (hf_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hf_zero : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = 0)
@@ -78,7 +82,7 @@ theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E'
   -- Porting note: `simp only` does not call `rfl` to try to close the goal. See https://github.com/leanprover-community/mathlib4/issues/5025
   have hf_f_meas : f =ᵐ[μ] f_meas := by simp only [Subtype.coe_mk]; rfl
   refine' hf_f_meas.trans _
-  refine' lpMeas.ae_eq_zero_of_forall_set_integral_eq_zero hm f_meas hp_ne_zero hp_ne_top _ _
+  refine' lpMeas.ae_eq_zero_of_forall_setIntegral_eq_zero hm f_meas hp_ne_zero hp_ne_top _ _
   · intro s hs hμs
     have hfg_restrict : f =ᵐ[μ.restrict s] f_meas := ae_restrict_of_ae hf_f_meas
     rw [IntegrableOn, integrable_congr hfg_restrict.symm]
@@ -87,10 +91,14 @@ theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E'
     have hfg_restrict : f =ᵐ[μ.restrict s] f_meas := ae_restrict_of_ae hf_f_meas
     rw [integral_congr_ae hfg_restrict.symm]
     exact hf_zero s hs hμs
-#align measure_theory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero' MeasureTheory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero'
+#align measure_theory.Lp.ae_eq_zero_of_forall_set_integral_eq_zero' MeasureTheory.Lp.ae_eq_zero_of_forall_setIntegral_eq_zero'
+
+@[deprecated]
+alias Lp.ae_eq_zero_of_forall_set_integral_eq_zero' :=
+  Lp.ae_eq_zero_of_forall_setIntegral_eq_zero' -- deprecated on 2024-04-17
 
 /-- **Uniqueness of the conditional expectation** -/
-theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (hp_ne_zero : p ≠ 0)
+theorem Lp.ae_eq_of_forall_setIntegral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (hp_ne_zero : p ≠ 0)
     (hp_ne_top : p ≠ ∞) (hf_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn g s μ)
     (hfg : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
@@ -110,13 +118,17 @@ theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (
   have hfg_meas : AEStronglyMeasurable' m (⇑(f - g)) μ :=
     AEStronglyMeasurable'.congr (hf_meas.sub hg_meas) (Lp.coeFn_sub f g).symm
   exact
-    Lp.ae_eq_zero_of_forall_set_integral_eq_zero' 𝕜 hm (f - g) hp_ne_zero hp_ne_top hfg_int hfg'
+    Lp.ae_eq_zero_of_forall_setIntegral_eq_zero' 𝕜 hm (f - g) hp_ne_zero hp_ne_top hfg_int hfg'
       hfg_meas
-#align measure_theory.Lp.ae_eq_of_forall_set_integral_eq' MeasureTheory.Lp.ae_eq_of_forall_set_integral_eq'
+#align measure_theory.Lp.ae_eq_of_forall_set_integral_eq' MeasureTheory.Lp.ae_eq_of_forall_setIntegral_eq'
+
+@[deprecated]
+alias Lp.ae_eq_of_forall_set_integral_eq' :=
+  Lp.ae_eq_of_forall_setIntegral_eq' -- deprecated on 2024-04-17
 
 variable {𝕜}
 
-theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFinite (μ.trim hm)]
+theorem ae_eq_of_forall_setIntegral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFinite (μ.trim hm)]
     {f g : α → F'} (hf_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn g s μ)
     (hfg_eq : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
@@ -155,8 +167,12 @@ theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFi
       integral_congr_ae (ae_restrict_of_ae hfm.ae_eq_mk.symm),
       integral_congr_ae (ae_restrict_of_ae hgm.ae_eq_mk.symm)]
     exact hfg_eq s hs hμs
-  exact ae_eq_of_forall_set_integral_eq_of_sigmaFinite hf_mk_int_finite hg_mk_int_finite hfg_mk_eq
-#align measure_theory.ae_eq_of_forall_set_integral_eq_of_sigma_finite' MeasureTheory.ae_eq_of_forall_set_integral_eq_of_sigmaFinite'
+  exact ae_eq_of_forall_setIntegral_eq_of_sigmaFinite hf_mk_int_finite hg_mk_int_finite hfg_mk_eq
+#align measure_theory.ae_eq_of_forall_set_integral_eq_of_sigma_finite' MeasureTheory.ae_eq_of_forall_setIntegral_eq_of_sigmaFinite'
+
+@[deprecated]
+alias ae_eq_of_forall_set_integral_eq_of_sigmaFinite' :=
+  ae_eq_of_forall_setIntegral_eq_of_sigmaFinite' -- deprecated on 2024-04-17
 
 end UniquenessOfConditionalExpectation
 
@@ -187,13 +203,13 @@ theorem integral_norm_le_of_forall_fin_meas_integral_eq (hm : m ≤ m0) {f g : 
         ((measure_mono (Set.inter_subset_right _ _)).trans_lt (lt_top_iff_ne_top.mpr hμs)),
       ← Measure.restrict_restrict (hm _ h_meas_nonneg_g), ←
       Measure.restrict_restrict h_meas_nonneg_f]
-    exact set_integral_le_nonneg (hm _ h_meas_nonneg_g) hf hfi
+    exact setIntegral_le_nonneg (hm _ h_meas_nonneg_g) hf hfi
   · rw [Measure.restrict_restrict (hm _ h_meas_nonpos_g), Measure.restrict_restrict h_meas_nonpos_f,
       hgf _ (@MeasurableSet.inter α m _ _ h_meas_nonpos_g hs)
         ((measure_mono (Set.inter_subset_right _ _)).trans_lt (lt_top_iff_ne_top.mpr hμs)),
       ← Measure.restrict_restrict (hm _ h_meas_nonpos_g), ←
       Measure.restrict_restrict h_meas_nonpos_f]
-    exact set_integral_nonpos_le (hm _ h_meas_nonpos_g) hf hfi
+    exact setIntegral_nonpos_le (hm _ h_meas_nonpos_g) hf hfi
 #align measure_theory.integral_norm_le_of_forall_fin_meas_integral_eq MeasureTheory.integral_norm_le_of_forall_fin_meas_integral_eq
 
 /-- Let `m` be a sub-σ-algebra of `m0`, `f` an `m0`-measurable function and `g` an `m`-measurable

IsROrC contains data, which goes against the expectation that classes prefixed with Is are prop-valued. People have been complaining about this on and off, so this PR renames IsROrC to RCLike.

@@ -33,7 +33,7 @@ open scoped ENNReal MeasureTheory
 
 namespace MeasureTheory
 
-variable {α E' F' 𝕜 : Type*} {p : ℝ≥0∞} {m m0 : MeasurableSpace α} {μ : Measure α} [IsROrC 𝕜]
+variable {α E' F' 𝕜 : Type*} {p : ℝ≥0∞} {m m0 : MeasurableSpace α} {μ : Measure α} [RCLike 𝕜]
   -- 𝕜 for ℝ or ℂ
   -- E' for an inner product space on which we compute integrals
   [NormedAddCommGroup E']

Inspired by #10538 add a positivity extension for Bochner integrals.

@@ -208,7 +208,7 @@ theorem lintegral_nnnorm_le_of_forall_fin_meas_integral_eq (hm : m ≤ m0) {f g
   rw [← ofReal_integral_norm_eq_lintegral_nnnorm hfi, ←
     ofReal_integral_norm_eq_lintegral_nnnorm hgi, ENNReal.ofReal_le_ofReal_iff]
   · exact integral_norm_le_of_forall_fin_meas_integral_eq hm hf hfi hg hgi hgf hs hμs
-  · exact integral_nonneg fun x => norm_nonneg _
+  · positivity
 #align measure_theory.lintegral_nnnorm_le_of_forall_fin_meas_integral_eq MeasureTheory.lintegral_nnnorm_le_of_forall_fin_meas_integral_eq
 
 end IntegralNormLE

No changes to tactic file, it's just boring fixes throughout the library.

This follows on from #6964.

Co-authored-by: sgouezel <sebastien.gouezel@univ-rennes1.fr> Co-authored-by: Eric Wieser <wieser.eric@gmail.com>

@@ -96,8 +96,8 @@ theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (
     (hfg : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
     (hf_meas : AEStronglyMeasurable' m f μ) (hg_meas : AEStronglyMeasurable' m g μ) :
     f =ᵐ[μ] g := by
-  suffices h_sub : ⇑(f - g) =ᵐ[μ] 0
-  · rw [← sub_ae_eq_zero]; exact (Lp.coeFn_sub f g).symm.trans h_sub
+  suffices h_sub : ⇑(f - g) =ᵐ[μ] 0 by
+    rw [← sub_ae_eq_zero]; exact (Lp.coeFn_sub f g).symm.trans h_sub
   have hfg' : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → (∫ x in s, (f - g) x ∂μ) = 0 := by
     intro s hs hμs
     rw [integral_congr_ae (ae_restrict_of_ae (Lp.coeFn_sub f g))]

We remove all possible occurences of Type _ and Sort _ in favor of Type* and Sort*.

This has nice performance benefits.

@@ -33,7 +33,7 @@ open scoped ENNReal MeasureTheory
 
 namespace MeasureTheory
 
-variable {α E' F' 𝕜 : Type _} {p : ℝ≥0∞} {m m0 : MeasurableSpace α} {μ : Measure α} [IsROrC 𝕜]
+variable {α E' F' 𝕜 : Type*} {p : ℝ≥0∞} {m m0 : MeasurableSpace α} {μ : Measure α} [IsROrC 𝕜]
   -- 𝕜 for ℝ or ℂ
   -- E' for an inner product space on which we compute integrals
   [NormedAddCommGroup E']

• depends on: #5966

Co-authored-by: Eric Wieser <wieser.eric@gmail.com> Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

@@ -2,15 +2,12 @@
 Copyright (c) 2021 Rémy Degenne. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémy Degenne
-
-! This file was ported from Lean 3 source module measure_theory.function.conditional_expectation.unique
-! leanprover-community/mathlib commit d8bbb04e2d2a44596798a9207ceefc0fb236e41e
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.MeasureTheory.Function.AEEqOfIntegral
 import Mathlib.MeasureTheory.Function.ConditionalExpectation.AEMeasurable
 
+#align_import measure_theory.function.conditional_expectation.unique from "leanprover-community/mathlib"@"d8bbb04e2d2a44596798a9207ceefc0fb236e41e"
+
 /-!
 # Uniqueness of the conditional expectation
 

@@ -167,7 +167,7 @@ section IntegralNormLE
 
 variable {s : Set α}
 
-/-- Let `m` be a sub-σ-algebra of `m0`, `f` a `m0`-measurable function and `g` a `m`-measurable
+/-- Let `m` be a sub-σ-algebra of `m0`, `f` an `m0`-measurable function and `g` an `m`-measurable
 function, such that their integrals coincide on `m`-measurable sets with finite measure.
 Then `∫ x in s, ‖g x‖ ∂μ ≤ ∫ x in s, ‖f x‖ ∂μ` on all `m`-measurable sets with finite measure. -/
 theorem integral_norm_le_of_forall_fin_meas_integral_eq (hm : m ≤ m0) {f g : α → ℝ}
@@ -199,7 +199,7 @@ theorem integral_norm_le_of_forall_fin_meas_integral_eq (hm : m ≤ m0) {f g : 
     exact set_integral_nonpos_le (hm _ h_meas_nonpos_g) hf hfi
 #align measure_theory.integral_norm_le_of_forall_fin_meas_integral_eq MeasureTheory.integral_norm_le_of_forall_fin_meas_integral_eq
 
-/-- Let `m` be a sub-σ-algebra of `m0`, `f` a `m0`-measurable function and `g` a `m`-measurable
+/-- Let `m` be a sub-σ-algebra of `m0`, `f` an `m0`-measurable function and `g` an `m`-measurable
 function, such that their integrals coincide on `m`-measurable sets with finite measure.
 Then `∫⁻ x in s, ‖g x‖₊ ∂μ ≤ ∫⁻ x in s, ‖f x‖₊ ∂μ` on all `m`-measurable sets with finite
 measure. -/

@@ -75,7 +75,7 @@ variable (𝕜)
 theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E' p μ)
     (hp_ne_zero : p ≠ 0) (hp_ne_top : p ≠ ∞)
     (hf_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn f s μ)
-    (hf_zero : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → (∫ x in s, f x ∂μ) = 0)
+    (hf_zero : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = 0)
     (hf_meas : AEStronglyMeasurable' m f μ) : f =ᵐ[μ] 0 := by
   let f_meas : lpMeas E' 𝕜 m p μ := ⟨f, hf_meas⟩
   -- Porting note: `simp only` does not call `rfl` to try to close the goal. See https://github.com/leanprover-community/mathlib4/issues/5025
@@ -96,7 +96,7 @@ theorem Lp.ae_eq_zero_of_forall_set_integral_eq_zero' (hm : m ≤ m0) (f : Lp E'
 theorem Lp.ae_eq_of_forall_set_integral_eq' (hm : m ≤ m0) (f g : Lp E' p μ) (hp_ne_zero : p ≠ 0)
     (hp_ne_top : p ≠ ∞) (hf_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn g s μ)
-    (hfg : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → (∫ x in s, f x ∂μ) = ∫ x in s, g x ∂μ)
+    (hfg : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
     (hf_meas : AEStronglyMeasurable' m f μ) (hg_meas : AEStronglyMeasurable' m g μ) :
     f =ᵐ[μ] g := by
   suffices h_sub : ⇑(f - g) =ᵐ[μ] 0
@@ -122,7 +122,7 @@ variable {𝕜}
 theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFinite (μ.trim hm)]
     {f g : α → F'} (hf_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn f s μ)
     (hg_int_finite : ∀ s, MeasurableSet[m] s → μ s < ∞ → IntegrableOn g s μ)
-    (hfg_eq : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → (∫ x in s, f x ∂μ) = ∫ x in s, g x ∂μ)
+    (hfg_eq : ∀ s : Set α, MeasurableSet[m] s → μ s < ∞ → ∫ x in s, f x ∂μ = ∫ x in s, g x ∂μ)
     (hfm : AEStronglyMeasurable' m f μ) (hgm : AEStronglyMeasurable' m g μ) : f =ᵐ[μ] g := by
   rw [← ae_eq_trim_iff_of_aeStronglyMeasurable' hm hfm hgm]
   have hf_mk_int_finite :
@@ -150,7 +150,7 @@ theorem ae_eq_of_forall_set_integral_eq_of_sigmaFinite' (hm : m ≤ m0) [SigmaFi
   have hfg_mk_eq :
     ∀ s : Set α,
       MeasurableSet[m] s →
-        μ.trim hm s < ∞ → (∫ x in s, hfm.mk f x ∂μ.trim hm) = ∫ x in s, hgm.mk g x ∂μ.trim hm := by
+        μ.trim hm s < ∞ → ∫ x in s, hfm.mk f x ∂μ.trim hm = ∫ x in s, hgm.mk g x ∂μ.trim hm := by
     intro s hs hμs
     rw [trim_measurableSet_eq hm hs] at hμs
     rw [restrict_trim hm _ hs, ← integral_trim hm hfm.stronglyMeasurable_mk, ←
@@ -173,7 +173,7 @@ Then `∫ x in s, ‖g x‖ ∂μ ≤ ∫ x in s, ‖f x‖ ∂μ` on all `m`-me
 theorem integral_norm_le_of_forall_fin_meas_integral_eq (hm : m ≤ m0) {f g : α → ℝ}
     (hf : StronglyMeasurable f) (hfi : IntegrableOn f s μ) (hg : StronglyMeasurable[m] g)
     (hgi : IntegrableOn g s μ)
-    (hgf : ∀ t, MeasurableSet[m] t → μ t < ∞ → (∫ x in t, g x ∂μ) = ∫ x in t, f x ∂μ)
+    (hgf : ∀ t, MeasurableSet[m] t → μ t < ∞ → ∫ x in t, g x ∂μ = ∫ x in t, f x ∂μ)
     (hs : MeasurableSet[m] s) (hμs : μ s ≠ ∞) : (∫ x in s, ‖g x‖ ∂μ) ≤ ∫ x in s, ‖f x‖ ∂μ := by
   rw [integral_norm_eq_pos_sub_neg hgi, integral_norm_eq_pos_sub_neg hfi]
   have h_meas_nonneg_g : MeasurableSet[m] {x | 0 ≤ g x} :=
@@ -206,7 +206,7 @@ measure. -/
 theorem lintegral_nnnorm_le_of_forall_fin_meas_integral_eq (hm : m ≤ m0) {f g : α → ℝ}
     (hf : StronglyMeasurable f) (hfi : IntegrableOn f s μ) (hg : StronglyMeasurable[m] g)
     (hgi : IntegrableOn g s μ)
-    (hgf : ∀ t, MeasurableSet[m] t → μ t < ∞ → (∫ x in t, g x ∂μ) = ∫ x in t, f x ∂μ)
+    (hgf : ∀ t, MeasurableSet[m] t → μ t < ∞ → ∫ x in t, g x ∂μ = ∫ x in t, f x ∂μ)
     (hs : MeasurableSet[m] s) (hμs : μ s ≠ ∞) : (∫⁻ x in s, ‖g x‖₊ ∂μ) ≤ ∫⁻ x in s, ‖f x‖₊ ∂μ := by
   rw [← ofReal_integral_norm_eq_lintegral_nnnorm hfi, ←
     ofReal_integral_norm_eq_lintegral_nnnorm hgi, ENNReal.ofReal_le_ofReal_iff]

Co-authored-by: Scott Morrison <scott.morrison@anu.edu.au>