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structure definition def or abbrev

UnitsEqv

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formal statement (Lean)

  21structure UnitsEqv (L : Ledger) : Type where
  22  Rel   : Bridge L → Bridge L → Prop
  23  refl  : ∀ B, Rel B B
  24  symm  : ∀ {B₁ B₂}, Rel B₁ B₂ → Rel B₂ B₁
  25  trans : ∀ {B₁ B₂ B₃}, Rel B₁ B₂ → Rel B₂ B₃ → Rel B₁ B₃
  26
  27/-- Dimensionless predictions extracted from a bridge. -/

depends on (6)

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