reserve X for ComplexUnitarySpace;
reserve x, y, w, g, g1, g2 for Point of X;
reserve z for Complex;
reserve p, q, r, M, M1, M2 for Real;
reserve seq, seq1, seq2, seq3 for sequence of X;
reserve k,n,m for Nat;
reserve Nseq for increasing sequence of NAT;

theorem
  seq is convergent & lim seq = g implies dist((seq + x) , (g + x)) is
  convergent & lim dist((seq + x) , (g + x)) = 0
proof
  assume seq is convergent & lim seq = g;
  then seq + x is convergent & lim (seq + x) = g + x by Th7,Th17;
  hence thesis by Th24;
end;
