reserve i,j,k,l for natural Number;
reserve A for set, a,b,x,x1,x2,x3 for object;
reserve D,D9,E for non empty set;
reserve d,d1,d2,d3 for Element of D;
reserve d9,d19,d29,d39 for Element of D9;
reserve p,q,r for FinSequence;
reserve s for Element of D*;

theorem Th95:
  for z being Tuple of 1,D ex d st z = <*d*>
proof
  let z be Tuple of 1,D;
  z in 1-tuples_on D by Lm6;
  then z in the set of all  <*d*> by Th94;
  hence thesis;
end;
