
theorem RH5:
  RHartr 5 = <*5,20,30,20,5*>
  proof
    reconsider f = RHartr 5 as 5-element FinSequence;
    reconsider g = Newton_Coeff (5-1) as (4+1)-element
      complex-valued FinSequence;
    A1: f.1 = 5*(g.1) & f.2 = 5*(g.2) & f.3 = 5*(g.3) &
      f.4 = 5*(g.4) & f.5 = 5*(g.5) by VALUED_1:6;
    g.1 = 1 & g.2 = 4 & g.3 = 6 & g.4 = 4 & g.5 = 1
      by NC4;
    hence thesis by A1;
  end;
