Philosophers have been in disagreement over the notion of Universal for something like ten centuries, possibly more. Some are still at it. It’s not just a controversy in philosophy, it’s very obviously a fundamental one. Don't you know that?
EB
Sure he does. And so do I. The point is not that empirical proof of universals exists, but that people use them, constantly, in their lives. I can refer to "Germany" without referring to an individual, a location, a group, any instituion or law, in fact nothing specific at all and be understood. No one will say, "you can't say 'Germany' because there's no such thing as a universal".
When you say "Germany", you either refer to Germany right now, or to Germany between its creation and now or in the future. I fail to see the difference between that and referring to a particular. Ok, in this case, I guess you just chose the wrong example (your mistake), but what about a good example (from your point of view), like "apples"? Well, I will always say "this apple", "one apple", "two apples", or even "apples" in general etc. As I understand it, I will always mean particular apples, including possible all particular apples that have ever existed and will ever exist. Of course, I have this abstract notion of apple but when I talk about it I will indeed talk about it, that is, I will talk about this particular abstract notion of apple, which is broadly just an idea in mind like my idea of Germany is presumably an idea in my mind. So talking about this particular abstract notion of apple is just again talking about a particular. Sure, the abstract notion of apple is abstract but there is nothing to say about it except as an idea in my head. I sure use it to talk about actual apples, i.e. particular apples, i.e. those that I believe exist such that maybe I could pick one of them to eat it. You may think we have the same idea of apple but this is precisely what you need to prove. Yet, you don't have access to my mind. All you may have, broadly, is access to what I say. So, you're left with words. What you may want to call "Universals" are at best just words. And then only particular words, i.e. words as they are being used at some place and point in time. We may of course suspect that there are something in the world which may cause us (each in our own particular private way) to think of apples in a general way. This is what I called X, which you have already dismissed without even thinking about it. So, I guess there must be something, but what it really is exactly I certain don't know and I haven't seen you, or anybody else, justifying about they would know what this is, be it something material, i.e. apples as they grow on trees, or abstract, as Universal, whatever that means.
EB