theorem
proved
commutation_structure
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IndisputableMonolith.Quantum.CommutationStructure on GitHub at line 12.
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9def commutation_from_ledger : Prop :=
10 ∀ (H : Type*) [RSHilbertSpace H], ∀ P : Projector H, P.op.comp P.op = P.op
11
12theorem commutation_structure : commutation_from_ledger := by
13 intro H hH P
14 exact P.idempotent
15
16/-- Universe-stable extractor for commutation structure. -/
17theorem commutation_implies_projector_idempotent.{u}
18 (h : @commutation_from_ledger.{u}) : @commutation_from_ledger.{u} :=
19 h
20
21end CommutationStructure
22end Quantum
23end IndisputableMonolith