 In Metaphysics VII 2, Aristotle tells us, in 1028b19–21, that Plato accepted three sorts of entities: forms, mathematicals, and perceptibles; in this context that means formal numbers, mathematical numbers, and perceptibles. He then, in b21–24, talks about Speusippus’ views (see the entry on  Speusippus).  In both cases he gives us the names. Then, in b24–27 he says this: