The two arguments therefore rely on structurally distinct principles to establish that forms fall under their own predicate

On the second view, the regress arises differently. In particular, the reasoning relies explicitly on Paradigmatism and on an assumption that Parmenides emphasizes as he is setting up his criticism, namely that the relation of likeness is symmetrical: if X is like Y, then Y is like X (Parmenides 132d5–7). Consider two things, A and B, that both have the property of being F. Given that there is a property that A and B both share, it follows that A is like B and that B is like A. Thus, A is like s