{α : Type u_5} →
  {β : Type u_6} →
    {r : α → α → Prop} →
      {s : β → β → Prop} →
        {motive : r ↪r s → Sort u} →
          (t : r ↪r s) →
            ((toEmbedding : α ↪ β) →
                (map_rel_iff' : ∀ {a b : α}, s (toEmbedding a) (toEmbedding b) ↔ r a b) →
                  motive { toEmbedding := toEmbedding, map_rel_iff' := map_rel_iff' }) →
              motive t