actual_corrector_perturbation

Plain-English statement

Independent exactSCI72 18183c58eee62145b6059ded11c7be05a4cb82de. Same original six analytic callers/twelve witnesses/all actual71 clauses; same C/A0/Gamma0/Inv exact perturbation for every u,v,r in HP0. Generic conditions produced internally. Arbitrary r is not actual r_rho; actual H/K/B27/B28, dynamics/nonexplosion/main/errors/cost/composition remain open. Rank0/alphaeta1 legal; no extra caller, onto or higher regularity. Full Exposition/PURIFIED/main/live/Goal not inferred.

Scope guard. This card records a compiled local declaration. Its mathematical scope is exactly the Lean statement below; the Registry note and source correspondence may describe motivation but do not strengthen it.

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Lean statement

theorem actual_corrector_perturbation
    {E : Type*} [NormedAddCommGroup E] [InnerProductSpace ℝ E]
    [FiniteDimensional ℝ E] [MeasurableSpace E] [BorelSpace E]
    {V : E → ℝ} {α β : ℝ≥0} {η : ℝ}
    (hα : 0 < (α : ℝ)) (hαβ : α ≤ β) (hV : ContDiff ℝ 2 V)
    (hH : ∀ x v : E,
      (α : ℝ)*‖v‖^2 ≤ (fderiv ℝ (fderiv ℝ V) x v) v ∧
      (fderiv ℝ (fderiv ℝ V) x v) v ≤ (β : ℝ)*‖v‖^2)
    (hη : 0 < η) (hβη : (β : ℝ)*η ≤ 1) : actual_corrector_perturbation_statement (E:=E) (V:=V) (α:=α) (β:=β) (η:=η) hα hαβ hV hH hη hβη := by
  unfold actual_corrector_perturbation_statement
  classical
  let μ := (volume : Measure E).tilted (fun x => -V x)
  let J := (μ.prod (stdGaussian E)).map
    (fun p : E × E => (p.1,p.1+Real.sqrt η • p.2))
  let ν := J.snd
  let mY : MeasurableSpace (E × E) := MeasurableSpace.comap Prod.snd (inferInstance : MeasurableSpace E)
  letI : MeasurableSpace (E × E) := Prod.instMeasurableSpace
  letI : Fact (mY ≤ (inferInstance : MeasurableSpace (E × E))) := ⟨measurable_snd.comap_le⟩
  let HP := lpMeas ℝ ℝ mY 2 J
  letI : NormedAddCommGroup HP := HP.normedAddCommGroup
  letI : InnerProductSpace ℝ HP := HP.innerProductSpace
  let P : Lp ℝ 2 J →L[ℝ] Lp ℝ 2 J :=
    HP.subtypeL ∘L condExpL2 ℝ ℝ (μ := J) measurable_snd.comap_le
  have hBase := AutoSamplingTheory.ExampleCases.ProximalBPS.ActualCorrectorChange.actual_corrector_change
    (E:=E) (V:=V) (α:=α) (β:=β) (η:=η) hα hαβ hV hH hη hβη
  have parentSlice0 := hBase
  have hμ := parentSlice0.1
  have parentSlice1 := parentSlice0.2
  have hJ := parentSlice1.1
  have parentSlice2 := parentSlice1.2
  have hν := parentSlice2.1
  have parentSlice3 := parentSlice2.2
  have hRange := parentSlice3.1
  have parentSlice4 := parentSlice3.2
  have hPf := parentSlice4.1
  have parentSlice5 := parentSlice4.2
  obtain ⟨S, parentSlice6⟩ := parentSlice5
  have hS := parentSlice6.1
  have parentSlice7 := parentSlice6.2
  have hSd := parentSlice7.1
  have parentSlice8 := parentSlice7.2
  have hSc := parentSlice8.1
  have parentSlice9 := parentSlice8.2
  have hSf := parentSlice9.1
  have parentSlice10 := parentSlice9.2
  have hSs := parentSlice10.1
  have parentSlice11 := parentSlice10.2
  obtain ⟨e, parentSlice12⟩ := parentSlice11
  have he := parentSlice12.1
  have parentSlice13 := parentSlice12.2
  obtain ⟨U, parentSlice14⟩ := parentSlice13
  have hU := parentSlice14.1
  have parentSlice15 := parentSlice14.2
  have hUi := parentSlice15.1
  have parentSlice16 := parentSlice15.2
  have hUs := parentSlice16.1
  have parentSlice17 := parentSlice16.2
  obtain ⟨T, parentSlice18⟩ := parentSlice17
  have hTs := parentSlice18.1
  have parentSlice19 := parentSlice18.2
  have hAll := parentSlice19.1
  have parentSlice20 := parentSlice19.2
  have hAeq := parentSlice20.1
  have parentSlice21 := parentSlice20.2
  have hAs := parentSlice21.1
  have parentSlice22 := parentSlice21.2
  have hAn := parentSlice22.1
  have parentSlice23 := parentSlice22.2
  have hPB := parentSlice23.1
  have parentSlice24 := parentSlice23.2
  obtain ⟨Γ, parentSlice25⟩ := parentSlice24
  have hΓ := parentSlice25.1
  have parentSlice26 := parentSlice25.2
  have hΓSq := parentSlice26.1
  have parentSlice27 := parentSlice26.2
  have hCommRoot := parentSlice27.1
  have parentSlice28 := parentSlice27.2
  have hΓP := parentSlice28.1
  have parentSlice29 := parentSlice28.2
  have hΓPSq := parentSlice29.1
  have parentSlice30 := parentSlice29.2
  have hCommP := parentSlice30.1
  have parentSlice31 := parentSlice30.2
  have hGram := parentSlice31.1
  have parentSlice32 := parentSlice31.2
  obtain ⟨q, parentSlice33⟩ := parentSlice32
  have hqa := parentSlice33.1
  have parentSlice34 := parentSlice33.2
  have hTq := parentSlice34.1
  have parentSlice35 := parentSlice34.2
  have hq := parentSlice35.1
  have parentSlice36 := parentSlice35.2
  have hCenter := parentSlice36.1
  have parentSlice37 := parentSlice36.2
  have hΓPq := parentSlice37.1
  have parentSlice38 := parentSlice37.2
  have hγ := parentSlice38.1
  have parentSlice39 := parentSlice38.2
  obtain ⟨ΓP0, parentSlice40⟩ := parentSlice39
  have hΓP0 := parentSlice40.1
  have parentSlice41 := parentSlice40.2
  have hPos0 := parentSlice41.1
  have parentSlice42 := parentSlice41.2
  have hOrder0 := parentSlice42.1
  have parentSlice43 := parentSlice42.2
  have hUnit := parentSlice43.1
  have parentSlice44 := parentSlice43.2
  obtain ⟨Inv, parentSlice45⟩ := parentSlice44
  have hLeft := parentSlice45.1
  have parentSlice46 := parentSlice45.2
  have hRight := parentSlice46.1
  have parentSlice47 := parentSlice46.2
  have hNormInv := parentSlice47.1
  have parentSlice48 := parentSlice47.2
  have hInvSelf := parentSlice48.1
  have parentSlice49 := parentSlice48.2
  obtain ⟨A0, parentSlice50⟩ := parentSlice49
  have hA0 := parentSlice50.1
  have parentSlice51 := parentSlice50.2
  have hA0self := parentSlice51.1
  have parentSlice52 := parentSlice51.2
  have hComm0 := parentSlice52.1
  have parentSlice53 := parentSlice52.2
  have hSquare0 := parentSlice53.1
  have parentSlice54 := parentSlice53.2
  have hCommInv := parentSlice54.1
  have parentSlice55 := parentSlice54.2
  obtain ⟨B0, parentSlice56⟩ := parentSlice55
  have hB0 := parentSlice56.1
  have parentSlice57 := parentSlice56.2
  obtain ⟨V0, parentSlice58⟩ := parentSlice57
  have hVdef := parentSlice58.1
  have parentSlice59 := parentSlice58.2
  have hFactor := parentSlice59.1
  have parentSlice60 := parentSlice59.2
  have hVadj := parentSlice60.1
  have parentSlice61 := parentSlice60.2
  have hVnorm := parentSlice61.1
  have parentSlice62 := parentSlice61.2
  obtain ⟨R, parentSlice63⟩ := parentSlice62
  have hR := parentSlice63.1
  have parentSlice64 := parentSlice63.2
  have hAmbient := parentSlice64.1
  have parentSlice65 := parentSlice64.2
  have hDparent := parentSlice65.1
  have parentSlice66 := parentSlice65.2
  have hIntertwineParent := parentSlice66.1
  have hGlobal := parentSlice66.2
  let A : HP →L[ℝ] HP := HP.orthogonalProjectionOnto ∘L U.toContinuousLinearMap ∘L HP.subtypeL
  let B : HP →L[ℝ] Lp ℝ 2 J :=
    (((1 : Lp ℝ 2 J →L[ℝ] Lp ℝ 2 J)-P)*U.toContinuousLinearMap*P) ∘L HP.subtypeL
  let ΓP : HP →L[ℝ] HP := e.conjStarAlgEquiv Γ
  let qP : HP := e q
  let HP0 := (innerSL ℝ qP).ker
  letI : NormedAddCommGroup HP0 := HP0.normedAddCommGroup
  letI : InnerProductSpace ℝ HP0 := HP0.innerProductSpace
  letI : CompleteSpace HP0 := (innerSL ℝ qP).isClosed_ker.completeSpace_coe
  let Hperp := P.ker
  letI : NormedAddCommGroup Hperp := Hperp.normedAddCommGroup
  letI : InnerProductSpace ℝ Hperp := Hperp.innerProductSpace
  letI : CompleteSpace Hperp := P.isClosed_ker.completeSpace_coe
  change HP0 →L[ℝ] Hperp at B0 V0
  change HP0 →L[ℝ] HP0 at ΓP0 Inv A0
  change Lp ℝ 2 J →L[ℝ] Hperp at R
  change (∀ g : Lp ℝ 2 J, (R g : Lp ℝ 2 J)=g-P g) at hR
  change (∀ g : Lp ℝ 2 J,
    B.adjoint g=HP0.subtypeL (B0.adjoint (R g))) at hAmbient
  let D : Hperp →L[ℝ] Hperp := R ∘L U.toContinuousLinearMap ∘L Hperp.subtypeL
  have hD (h : Hperp) : (D h : Lp ℝ 2 J)=
      U (h : Lp ℝ 2 J)-P (U (h : Lp ℝ 2 J)) := hDparent h
  have hIntertwine : V0.adjoint ∘L D= -(A0 ∘L V0.adjoint) := hIntertwineParent
  have hΓself : IsSelfAdjoint ΓP0 := (show ΓP0.IsPositive from hPos0).isSelfAdjoint
  have hPerturb (u v r : HP0) :
      let C : HP0 → HP0 → ℝ := fun u v =>
        (‖u‖^2-‖v‖^2)/2-inner ℝ (A0 (Inv u)) v
      C (u+ΓP0 r) (v-A0 r)-C u v=inner ℝ u (Inv r)+‖r‖^2/2 := by
    exact AutoSamplingTheory.TechnicalLemmas.Analysis.HilbertCorrectorPerturbation.quadratic_corrector_perturbation
      A0 ΓP0 Inv hA0self hΓself hInvSelf hCommInv hLeft hRight hSquare0 u v r
  have hGlobal72 :
      (∀ f : Lp ℝ 2 J, (∫ z, f z ∂J)=0 →
                            ∃ fP : HP0,
                              HP0.subtypeL fP=condExpL2 ℝ ℝ (μ:=J) measurable_snd.comap_le f ∧
                              let fperp : Hperp := R f
                              let fV : HP0 := V0.adjoint fperp
                              B.adjoint (fperp : Lp ℝ 2 J)=HP0.subtypeL (ΓP0 fV) ∧
                              HP0.subtypeL (ΓP0 fV)=ΓP (HP0.subtypeL fV) ∧
                              ‖f‖^2=‖fP‖^2+‖fperp‖^2 ∧ ‖fV‖≤‖fperp‖ ∧
                              let g : Lp ℝ 2 J := U (P f-(f-P f))
                              (∫ z, g z ∂J)=0 ∧
                              ∃ gP : HP0,
                                HP0.subtypeL gP=condExpL2 ℝ ℝ (μ:=J) measurable_snd.comap_le g ∧
                                let gperp : Hperp := R g
                                let gV : HP0 := V0.adjoint gperp
                                gP=A0 fP-ΓP0 fV ∧
                                gV=ΓP0 fP+A0 fV ∧
                                ‖gP‖^2+‖gV‖^2=‖fP‖^2+‖fV‖^2 ∧
                                let C : HP0 → HP0 → ℝ := fun u v =>
                                  (‖u‖^2-‖v‖^2)/2-inner ℝ (A0 (Inv u)) v
                                C gP gV-C fP fV= -‖fP‖^2+‖fV‖^2 ∧
                                (∀ u v r : HP0,
                                  C (u+ΓP0 r) (v-A0 r)-C u v=
                                    inner ℝ u (Inv r)+‖r‖^2/2)) := by
    intro f hf
    obtain ⟨fP,hpf,hB,hEmbed,hEnergy,hVbound,hgMean,gP,hgpf,hgp,hgv,hPair,hCorrector⟩ :=
      hGlobal f hf
    refine ⟨fP,hpf,hB,hEmbed,hEnergy,hVbound,hgMean,gP,hgpf,hgp,hgv,hPair,hCorrector,?_⟩
    exact hPerturb
  have hFinal :
      (∀ h : Hperp, (D h : Lp ℝ 2 J)=U (h : Lp ℝ 2 J)-P (U (h : Lp ℝ 2 J))) ∧
      V0.adjoint ∘L D= -(A0 ∘L V0.adjoint) ∧
      (∀ f : Lp ℝ 2 J, (∫ z, f z ∂J)=0 →
                            ∃ fP : HP0,
                              HP0.subtypeL fP=condExpL2 ℝ ℝ (μ:=J) measurable_snd.comap_le f ∧
                              let fperp : Hperp := R f
                              let fV : HP0 := V0.adjoint fperp
                              B.adjoint (fperp : Lp ℝ 2 J)=HP0.subtypeL (ΓP0 fV) ∧
                              HP0.subtypeL (ΓP0 fV)=ΓP (HP0.subtypeL fV) ∧
                              ‖f‖^2=‖fP‖^2+‖fperp‖^2 ∧ ‖fV‖≤‖fperp‖ ∧
                              let g : Lp ℝ 2 J := U (P f-(f-P f))
                              (∫ z, g z ∂J)=0 ∧
                              ∃ gP : HP0,
                                HP0.subtypeL gP=condExpL2 ℝ ℝ (μ:=J) measurable_snd.comap_le g ∧
                                let gperp : Hperp := R g
                                let gV : HP0 := V0.adjoint gperp
                                gP=A0 fP-ΓP0 fV ∧
                                gV=ΓP0 fP+A0 fV ∧
                                ‖gP‖^2+‖gV‖^2=‖fP‖^2+‖fV‖^2 ∧
                                let C : HP0 → HP0 → ℝ := fun u v =>
                                  (‖u‖^2-‖v‖^2)/2-inner ℝ (A0 (Inv u)) v
                                C gP gV-C fP fV= -‖fP‖^2+‖fV‖^2 ∧
                                (∀ u v r : HP0,
                                  C (u+ΓP0 r) (v-A0 r)-C u v=
                                    inner ℝ u (Inv r)+‖r‖^2/2)) := ⟨hD,hIntertwine,hGlobal72⟩
  refine ⟨hμ, ?_⟩
  refine ⟨hJ, ?_⟩
  refine ⟨hν, ?_⟩
  refine ⟨hRange, ?_⟩
  refine ⟨hPf, ?_⟩
  refine ⟨S, ?_⟩
  refine ⟨hS, ?_⟩
  refine ⟨hSd, ?_⟩
  refine ⟨hSc, ?_⟩
  refine ⟨hSf, ?_⟩
  refine ⟨hSs, ?_⟩
  refine ⟨e, ?_⟩
  refine ⟨he, ?_⟩
  refine ⟨U, ?_⟩
  refine ⟨hU, ?_⟩
  refine ⟨hUi, ?_⟩
  refine ⟨hUs, ?_⟩
  refine ⟨T, ?_⟩
  refine ⟨hTs, ?_⟩
  refine ⟨hAll, ?_⟩
  refine ⟨hAeq, ?_⟩
  refine ⟨hAs, ?_⟩
  refine ⟨hAn, ?_⟩
  refine ⟨hPB, ?_⟩
  refine ⟨Γ, ?_⟩
  refine ⟨hΓ, ?_⟩
  refine ⟨hΓSq, ?_⟩
  refine ⟨hCommRoot, ?_⟩
  refine ⟨hΓP, ?_⟩
  refine ⟨hΓPSq, ?_⟩
  refine ⟨hCommP, ?_⟩
  refine ⟨hGram, ?_⟩
  refine ⟨q, ?_⟩
  refine ⟨hqa, ?_⟩
  refine ⟨hTq, ?_⟩
  refine ⟨hq, ?_⟩
  refine ⟨hCenter, ?_⟩
  refine ⟨hΓPq, ?_⟩
  refine ⟨hγ, ?_⟩
  refine ⟨ΓP0, ?_⟩
  refine ⟨hΓP0, ?_⟩
  refine ⟨hPos0, ?_⟩
  refine ⟨hOrder0, ?_⟩
  refine ⟨hUnit, ?_⟩
  refine ⟨Inv, ?_⟩
  refine ⟨hLeft, ?_⟩
  refine ⟨hRight, ?_⟩
  refine ⟨hNormInv, ?_⟩
  refine ⟨hInvSelf,A0,hA0,hA0self,hComm0,hSquare0,hCommInv,?_⟩
  refine ⟨B0, ?_⟩
  refine ⟨hB0, ?_⟩
  refine ⟨V0, ?_⟩
  refine ⟨hVdef, ?_⟩
  refine ⟨hFactor, ?_⟩
  refine ⟨hVadj, ?_⟩
  refine ⟨hVnorm, ?_⟩
  refine ⟨R, ?_⟩
  refine ⟨hR, ?_⟩
  refine ⟨hAmbient, ?_⟩
  exact hFinal

end
end AutoSamplingTheory.ExampleCases.ProximalBPS.ActualCorrectorPerturbation

#print axioms AutoSamplingTheory.ExampleCases.ProximalBPS.ActualCorrectorPerturbation.actual_corrector_perturbation

Open AutoSamplingTheory/ExampleCases/ProximalBPS/ActualCorrectorPerturbation.lean:143published source at ed709a7f320d

Proof architecture

PBPS consumer; no SALD admission

Lean proof walkthrough

Read the quantified variables and typeclass brackets as part of the mathematical statement; inferred arguments are not missing assumptions.
`intro` introduces quantified hypotheses into the local proof context.
`have` creates a named intermediate mathematical fact.
`refine` instantiates a reusable theorem while leaving explicit subgoals.
`exact` closes the current goal with an already typed term.

Why the statement has this shape

The declaration is kept at the reusable level recorded by its Registry tags and direct consumers. Explicit measures, spaces, wrappers, and regularity hypotheses expose interfaces that paper notation often infers. A theorem card explains those interfaces but never widens the compiled statement.

Hidden assumptions and non-claims

Measurability is represented explicitly or must be supplied by a dependency.
Totalized `fderiv` values must not be read as a differentiability theorem.
Almost-everywhere hypotheses depend on the stated measure and representative.