@sig("a"/ H[(RealFloat, "a")] >> bool)
def isNaN(x):
    """
    isNaN :: RealFloat a => a -> bool

    True if the argument is an IEEE "not-a-number" (NaN) value
    """
    return RealFloat[x].isNan(x)
dataset/ETHPy150Open billpmurphy/hask/hask/Data/Num.py/isNaN/swapped operands of `/`