But, f is fairly standardized (or rather, there's a short list of standard f's), and bitmaps aren't even hard to understand. Since the isomorphism is both natur

But, f is fairly standardized (or rather, there's a short list of standard f's), and bitmaps aren't even hard to understand. Since the isomorphism is both natural and conventional, I would say that in practice it is not accurate to hold f to the same standards as y.