I am not referring to two people or two cats or two pebbles or two cells etc.... That is two as an adjective. It is describing something concrete. I am talking about the number "2", the noun. I am talking about the number 2 as an abstract concept that exists purely as an idea. When a person counts: 1, 2, 3, 4, 5,... they don't have to be counting objects. They can just be counting. This is what I mean by the number 2. It's the idea that numbers exist separately from the natural world purely as concepts. There is a level of abstraction going from two people to simply 2 (actually there are two levels of abstraction

).
Traditional thinking is that abstract thought is what separates man from beast. Perhaps apes or dolphins can conceive of the number 2 as a separate abstract entity? That I don't know. I very much doubt a dog or cat can. Any understanding that a dog or cat has of the number 2 is concrete and not abstract.
The concrete precedes the abstract, but the concrete is not mathematics. In the most rigorous sense mathematics is logical proofs. Whenever a math major takes their first "proof" class the professor often says, "Welcome to your first
actual math class." This is why I say pure mathematics is mostly art, because constructing mathematical proofs is more of an art than a science.
Yeah I think wildcat is coming at it from a more historical perspective and I am looking at it as more of a logical framework. I can see it both ways, but the thing is that over time mathematicians have gradually put more emphasis on rigor. Eventually they desided to start over from the very logical foundations and prove everything from there. The history of mathematics is more of a novelty to mathematicians. Knowing the axioms, postulates, defintions, ect... and how to derive the various theorems from them is what is important.