[Ixa]

What do you think are the errors of Plato?

I would say, inter alia, this: Plato's philosophy implies that earlier abstractions ("universals", "forms", "ideas", etc), viz., the more general ones, contain individual differences therein; however, after just thinking about this, I have realised that this cannot possibly be the case: e.g., we can have the idea of a "cat", which is not a very general idea, and, if we do have that idea, we must moreover have the idea of "animal", for it explicitly presupposes said idea (it is more general, scil., earlier); however, the same us not true vice versa, i.e. we can have the idea of "animal" without the differentia, i.e. without the specific differences, viz. the idea of of "cat" or "dog" or "horse", ect.

And this is why Plato's philosophy is wrong.