let L be Z_Lattice; :: thesis: for v being Vector of L
for l being Linear_Combination of {} the carrier of L holds SumSc (v,l) = 0. F_Real
let v be Vector of L; :: thesis: for l being Linear_Combination of {} the carrier of L holds SumSc (v,l) = 0. F_Real
let l be Linear_Combination of {} the carrier of L; :: thesis: SumSc (v,l) = 0. F_Real
l = ZeroLC L by VECTSP_6:6;
hence SumSc (v,l) = 0. F_Real by LmSumSc11; :: thesis: verum