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 -/