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theorem proved term proof

resolutionCell_eq_fiber

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formal statement (Lean)

  79theorem resolutionCell_eq_fiber (c : C) :
  80    ResolutionCell r c = r.fiber (r.R c) := by

proof body

Term-mode proof.

  81  ext c'
  82  simp [ResolutionCell, Indistinguishable, Recognizer.fiber]
  83
  84/-- Two configurations have the same resolution cell iff they're indistinguishable -/

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