Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Steps towards "Quantum Gravity" and the practice of science: will the
  merger of mathematics and physics work?   The author recalls general tendencies of the "mathematization" of the
sciences and derives challenges and tentative obstructions for a successful
merger of mathematics and physics on fancied steps towards "Quantum Gravity".
This is an edited version of the author's opening words to an international
workshop "Quantum Gravity: An Assessment", Denmark, May 17-18, 2008. It
followed immediately after the Quantum Gravity Summer School 2008, see
http://QuantumGravity.ruc.dk/

31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con