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theorem proved term proof

composite_resolutionCell

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formal statement (Lean)

  94theorem composite_resolutionCell (r₁ : Recognizer C E₁) (r₂ : Recognizer C E₂) (c : C) :
  95    ResolutionCell (r₁ ⊗ r₂) c = ResolutionCell r₁ c ∩ ResolutionCell r₂ c := by

proof body

Term-mode proof.

  96  ext c'
  97  simp only [ResolutionCell, Set.mem_setOf_eq, Set.mem_inter_iff,
  98             composite_indistinguishable_iff]
  99
 100/-- Composite resolution cells are subsets of either component cell -/

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depends on (7)

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