{motive : (a a_1 : FreeSimplexQuiver) → a.Hom a_1 → Sort u} →
  ({n : ℕ} →
      (i : Fin (n + 2)) → motive (FreeSimplexQuiver.mk n) (FreeSimplexQuiver.mk (n + 1)) (FreeSimplexQuiver.Hom.δ i)) →
    ({n : ℕ} →
        (i : Fin (n + 1)) →
          motive (FreeSimplexQuiver.mk (n + 1)) (FreeSimplexQuiver.mk n) (FreeSimplexQuiver.Hom.σ i)) →
      {a a_1 : FreeSimplexQuiver} → (t : a.Hom a_1) → motive a a_1 t