I have a question that I think is quite weird and I can't find an answer.
Is there any real number that I can't find using only $+,-,\times,\div,$ limits and radicals?
For example, using some series, I can find $\pi$ or $e$. But is there any number that I can't find using only those?
Sorry if I made any mistakes, I don't know how to ask that question or which tags to put.