∀ (R : Type u_3) {A : Type u_1} {M : Type u_2} [inst : Semiring R] [inst_1 : Add M]
  [inst_2 : NonUnitalNonAssocSemiring A] [inst_3 : Module R A] [inst_4 : IsScalarTower R A A]
  [inst_5 : SMulCommClass R A A],
  Function.LeftInverse (MonoidAlgebra.liftMagma R).invFun (MonoidAlgebra.liftMagma R).toFun