
theorem
  for L being Z_Lattice, v being Vector of DivisibleMod(L),
      l being Linear_Combination of {}(the carrier of DivisibleMod(L))
  holds SumSc(v, l) = 0.F_Real
  proof
    let L be Z_Lattice, v be Vector of DivisibleMod(L),
        l be Linear_Combination of {}(the carrier of DivisibleMod(L));
    l = ZeroLC(DivisibleMod(L)) by VECTSP_6:6;
    hence thesis by LmSumScDM11;
  end;
