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theorem proved term proof

isRecognitionConnected_resolutionCell

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formal statement (Lean)

  62theorem isRecognitionConnected_resolutionCell (r : Recognizer C E) (c : C) :
  63    IsRecognitionConnected r (ResolutionCell r c) := by

proof body

Term-mode proof.

  64  intro c₁ c₂ h₁ h₂
  65  simp only [ResolutionCell, Set.mem_setOf_eq] at h₁ h₂
  66  exact Indistinguishable.trans r h₁ (Indistinguishable.symm' r h₂)
  67
  68/-- A subset of a recognition-connected set is recognition-connected -/

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