OAI.Kadison.FreeBlocks.base_intertwining: intermediate lemma from OpenAI, Kadison's similarity theorem through uniform derivation estimates (result family 288)
ProvedOAI.Kadison.FreeBlocks.base_intertwiningAn intermediate lemma of the split of OpenAI's proof of OAI.Kadison.uniform_commutator, carved from OpenAI's openai/math development for this platform. The statement and its proof are OpenAI's (OpenAI, Kadison's similarity theorem through uniform derivation estimates (result family 288), OpenAI Math Release, September 23, 2026, result family 288, github.com/openai/math, Apache License 2.0), ported to Lean 4.33.1 and Mathlib 0df444a.
The statement, as published (namespace OAI.Kadison.FreeBlocks, with open scoped InnerProductSpace TensorProduct ComplexOrder, open UniformSpace, open FreeMoments FreeWordTensor):
lemma base_intertwining (s : letterSpace t S j) (hs : ‖s‖=1)
(x : letterSpace t S i) (d : D) (v : multiplicityLevel t S j 0) :
G (t.functional.gnsStarAlgHom (f d) (blockEmbedding t S hfree hij 0 v))=
t.functional.gnsStarAlgHom (f d) (blockEmbedding t S hfree hij 0 (B 0 v))
Definitions. The statement is written with OAI.Kadison.FreeMoments.Free, OAI.Kadison.FreeWordTensor.FaithfulState, OAI.Kadison.FreeWordTensor.faithfulNormed, OAI.Kadison.FreeWordTensor.letterSpace, OAI.Kadison.FreeWordTensor.preSpace and OAI.Kadison.FreeWordTensor.Space (definitions bundle OAIQ039C010 of this split); OAI.Kadison.FreeBlocks.blockTensor (definitions bundle OAIQ039C025 of this split); OAI.Kadison.FreeBlocks.multiplicityLevel and OAI.Kadison.FreeBlocks.multiplicityTensor (definitions bundle OAIQ039C036 of this split); OAI.Kadison.FreeBlocks.blockEmbedding (definitions bundle OAIQ039C047 of this split); OAI.Kadison.FreeBlocks.repeatedOutput (definitions bundle OAIQ039C059 of this split).
Used by. The proofs of OAI.Kadison.FreeBlocks.base_block_intertwines and OAI.Kadison.FreeBlocks.propagation_of_local_module of this split import it.
import Mathlib import Definitions.Def_OAIQ039C059
section
attribute [-instance] _root_.OAI.Kadison.ConcreteCorner.closedCarrier _root_.OAI.Kadison.CyclicColumns.instDecidableEq_solutions _root_.OAI.Kadison.UnitaryDualAction.action _root_.OAI.Kadison.VonNeumannCStar.cstarAlgebra _root_.OAI.Kadison.VonNeumannCStar.isClosed _root_.OAI.Kadison.VonNeumannCStar.smulMemClass _root_.OAI.Kadison.VonNeumannCStar.starOrderedRing
set_option linter.all false
set_option linter.unusedVariables false
set_option linter.unusedTactic false
set_option linter.unreachableTactic false
namespace OAI
noncomputable section
section
noncomputable section
open scoped InnerProductSpace TensorProduct ComplexOrder
open UniformSpace
namespace Kadison.FreeBlocks
open FreeMoments FreeWordTensor
variable {A D : Type} [CStarAlgebra A] [PartialOrder A] [StarOrderedRing A]
[CStarAlgebra D] [PartialOrder D] [StarOrderedRing D]
variable (t : FaithfulState A) {ι : Type*} (S : ι → StarSubalgebra ℂ A)
variable {i j : ι}
variable (f : D →⋆ₐ[ℂ] A) (hf : Function.Injective f) (hS : S i=f.range)
variable (hfree : Free S t.functional.toLinearMap) (hij : i≠j)
variable (G : t.functional.GNS →L[ℂ] t.functional.GNS)
variable (B : ∀ n, multiplicityLevel t S j n →L[ℂ] multiplicityLevel t S j n)
variable (hB : ∀ n d (x : letterSpace t S i) v,
G (repeatedOutput t S f hf hS hfree hij d x n v)=
repeatedOutput t S f hf hS hfree hij d x n (B n v))
include hB in
lemma base_intertwining (s : letterSpace t S j) (hs : ‖s‖=1)
(x : letterSpace t S i) (d : D) (v : multiplicityLevel t S j 0) :
G (t.functional.gnsStarAlgHom (f d) (blockEmbedding t S hfree hij 0 v))=
t.functional.gnsStarAlgHom (f d) (blockEmbedding t S hfree hij 0 (B 0 v)) := by
sorry
end Kadison.FreeBlocks
end
end
end
end OAI
end