(motive : Option Lean.Expr → Option Lean.Expr → Sort u_1) →
  (leInst? isPreorderInst? : Option Lean.Expr) →
    ((leInst isPreorderInst : Lean.Expr) → motive (some leInst) (some isPreorderInst)) →
      ((x x_1 : Option Lean.Expr) → motive x x_1) → motive leInst? isPreorderInst?