Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new proof of Menelaus's Theorem of Hyperbolic Quadrilaterals in the
  Poincar\'e Model of Hyperbolic Geometry   In this study we give the hyperbolic version of classical Menelaus theorem
for quadrilaterals.

18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin