theorem
  for h being PartFunc of W,REAL, seq being sequence of W holds
  h is total implies (r(#)h)/*seq = r(#)(h/*seq)
proof
  let h be PartFunc of W,REAL, seq be sequence of W;
  assume h is total;
  then dom h = W by PARTFUN1:def 2;
  then rng seq c= dom h;
  hence thesis by Th9;
end;
