∀ {α : Type u_1} [inst : NonUnitalNonAssocSemiring α],
  (let __src := AddMonoid.End.mulLeft ↑0;
    ⟨{ toAddMonoidHom := AddMonoid.End.mulLeft ↑0, map_mul_left' := ⋯, map_mul_right' := ⋯ }, ⋯⟩) =
    0