Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Primitives of continuous functions via polynomials   We present an elementary self-contained folkloristic proof, using limits of
primitives of Bernstein polynomials, for the existence of primitive functions
of continuous functions defined on the unit interval.

3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: solv-int
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The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex