Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on Saleh's paper `Almost continuity implies closure continuity'   Recently, Saleh claimed to have solved `a long standing open question' in
Topology; namely, he proved that every almost continuous function is closure
continuous (= $\theta$-continuous). Unfortunately, this problem was settled
long time ago and even a better result is known.

5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin