∀ (α : Type u_1) (args : Std.Packages.LinearPreorderOfOrdArgs α),
  (let this := args.ord;
    let this_1 := ⋯;
    let this_2 := args.le;
    Std.LawfulOrderOrd α) →
    ∀ (a b : α), (a == b) = true ↔ a ≤ b ∧ b ≤ a