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def definition def or abbrev

IsFinerThan'

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formal statement (Lean)

  42def IsFinerThan' {E₁ E₂ : Type*} (r₁ : Recognizer C E₁) (r₂ : Recognizer C E₂) : Prop :=

proof body

Definition body.

  43  ∀ c₁ c₂ : C, Indistinguishable r₁ c₁ c₂ → Indistinguishable r₂ c₁ c₂
  44

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