It appears that every Argument of D2 is logically valid. (However, see Gill (1996, 64, n. 107), who contends that D2A8 and D2A9 are fallacious, and Patterson (1999, 98–100), who argues that D2A8 is fallacious.)) Like the Arguments of D1, the Arguments of D2 rest on a large number of independent premises, including many of the independent premises of D1. Again, most of these premises are, at least from Plato’s point of view, either definitionally true or self-evident. (Gill (1996, 83–84) objects