Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonstandard Tools for Nonsmooth Analysis   This is an overview of the basic tools of nonsmooth analysis which are
grounded on nonstandard models of set theory. By way of illustration we give a
criterion for an infinitesimally optimal path of a general discrete dynamic
system.

9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
3
The categories of this paper are: physics