Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Update: Remarks on Countable Tightness   The proof of Theorem 11 of the paper M. Scheepers, Remarks on countable
tightness, Topology and its Applications 161 (2014), 407 - 432 relies on Lemma
10 of that paper. The offered proof of Lemma 10 had shortcomings, and I was
recently asked for details. This note gives an alternative, complete proof of
Lemma 10.

20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics