  Suppose, first, that partaking conforms to the Whole Pie Model.  Now imagine that there are at one time three sensible F things, A, B, and C, each separate from each of the others. According to Causality, each of A, B, C is F by virtue of partaking of the F, and hence each of A, B, C partakes of the F. Given the Whole Pie Model, it follows that the F is, as a whole and at a single time, in each of A, B, C. Thus, the whole of the F is in A, the whole of the F is in B, and the whole of the F is in C. If A, B, and C are in separate places, then Causality and the Whole Pie Model together require that one and the same form be, as a whole, in separate places at the same time. Parmenides concludes that, on this picture, the relevant form would be “separate from itself” (Parmenides 131b2).