reserve a,b,i,k,m,n for Nat;
reserve s,z for non zero Nat;
reserve r for Real;
reserve c for Complex;
reserve e1,e2,e3,e4,e5 for ExtReal;

theorem
  2|^10+1 = 1025
  proof
    thus 2|^10+1 = 2*2*2*2*2*2*2*2*2*2+1 by NUMBER02:6
    .= 1025;
  end;
