Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Oppositions in a line segment   Traditional oppositions are at least two-dimensional in the sense that they
are built based on a famous bidimensional object called square of oppositions
and on one of its extensions such as Blanch\'e's hexagon. Instead of
two-dimensional objects, this article proposes a construction to deal with
oppositions in a one-dimensional line segment.

28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg