∀ {J : CategoryTheory.Limits.MultispanShape} (motive : CategoryTheory.Limits.WalkingMultispan J → Sort u_3) (i : J.L)
  (h_1 : (i : J.L) → motive (CategoryTheory.Limits.WalkingMultispan.left i))
  (h_2 : (i : J.R) → motive (CategoryTheory.Limits.WalkingMultispan.right i)),
  (match CategoryTheory.Limits.WalkingMultispan.left i with
    | CategoryTheory.Limits.WalkingMultispan.left i => h_1 i
    | CategoryTheory.Limits.WalkingMultispan.right i => h_2 i) =
    h_1 i