Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hausdorff's forgotten proof that almost all numbers are normal   In 1914, Felix Hausdorff published an elegant proof that almost all numbers
are simply normal in base 2. We generalize this proof to show that almost all
numbers are normal. The result is arguably the most elementary proof for this
theorem so far and should be accessible to undergraduates in their first year.

22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph