{i : Type u_1} →
  (x x_1 : Lean.Doc.Inline i) →
    (motive : Decidable (x.ctorIdx = x_1.ctorIdx) → Sort u_2) →
      (x_2 : Decidable (x.ctorIdx = x_1.ctorIdx)) →
        ((h : x.ctorIdx = x_1.ctorIdx) → motive (isTrue h)) →
          ((h : ¬x.ctorIdx = x_1.ctorIdx) → motive (isFalse h)) → motive x_2