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instance definition def or abbrev

setoid

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formal statement (Lean)

  70instance setoid : Setoid (LogicNat × LogicNat) :=

proof body

Definition body.

  71  ⟨intRel, intRel_refl, intRel_symm, intRel_trans⟩
  72
  73/-! ## 2. The Type of Logic-Native Integers -/
  74
  75/-- `LogicInt` is the Grothendieck completion of `LogicNat` under
  76addition. -/

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