gesamt/skinner33_01.0

   1
   2 method even(x)
   3         if x = 0 then
   4                 return 0;
   5         else
   6                 return odd(x-1);
   7         end;
   8 end;
   9
  10 method odd(x)
  11         if 0 = x then
  12                 return 1;
  13         else
  14                 return even((x-1));
  15         end;
  16 end;