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def definition def or abbrev

recognition_from_extraction

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formal statement (Lean)

  96def recognition_from_extraction {S : Type} (M : ObservableExtractionMechanism S) :
  97    RecognitionStructure S := {

proof body

Definition body.

  98  recognizes := fun s₁ s₂ => M.extract s₁ = M.extract s₂
  99  self_recognition := fun _ => rfl
 100  symmetric := fun _ _ h => h.symm
 101}
 102
 103/-- Recognition is unique extraction mechanism. -/

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depends on (13)

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