Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The axiomatic melting pot. Teaching probability theory in Prague during
  the 1930's   In this paper, we are interested in the teaching of probability theory in
Prague and Czechoslovakia, in particular during the 1930's. We focus specially
on a textbook, published in Prague by Karel Rychlik in 1938, which uses
Kolmogorov's axiomatization, a very exceptional fact before World War II.

28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin