∀ {R : Type u_1} {A : Type u_2} [inst : CommSemiring R] [inst_1 : Semiring A] [inst_2 : Module R A]
  [inst_3 : Coalgebra R A] (a : A), CoalgebraStruct.counit (LaurentPolynomial.C a) = CoalgebraStruct.counit a