Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on "A minimal congruence lattice representation for $\mathbb
  M_{p+1}$''   We reprove a theorem of Bunn, Grow, Insall, and Thiem, which asserts that a
minimal congruence lattice representation for $\mathbb M_{p+1}$ has size $2p$,
and is an expansion of a regular $D_{2p}$-set.

0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph