TRS:
 { not(true()) -> false(),
  not(false()) -> true(),
      odd(0()) -> false(),
     odd(s(x)) -> not(odd(x)),
     +(x, 0()) -> x,
    +(x, s(y)) -> s(+(x, y)),
    +(s(x), y) -> s(+(x, y))}
 Cdiprover:
  Interpretation class: pizerosimplemixed
  Complexity bound: POLYTIME COMPUTABLE
  +(X4, X3) = + 0*X4^2 + 0*X3^2 + 2*X4 + 0 + 2*X3 + 0*X3*X4
  s(X2) = + 1*X2 + 1
  0 = + 1
  odd(X1) = + 0*X1^2 + 0 + 2*X1
  true = + 1
  not(X0) = + 0*X0^2 + 1 + 1*X0
  false = + 1
  
  Qed