add = __add__ = def (x, y): return x + y
sub = __sub__ = def (x, y): return x - y
mul = __mul__ = def (x, y): return x * y
div = __div__ = def (x, y): return x / y

lt = __lt__ = def (x, y): return x < y
le = __le__ = def (x, y): return x <= y
eq = __eq__ = def (x, y): return x is y
ne = __ne__ = def (x, y): return x is not y
ge = __ge__ = def (x, y): return x >= y
gt = __gt__ = def (x, y): return x > y