Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Improving problem solving by exploiting the concept of symmetry   We investigate the concept of symmetry and its role in problem solving. This
paper first defines precisely the elements that constitute a "problem" and its
"solution," and gives several examples to illustrate these definitions. Given
precise definitions of problems, it is relatively straightforward to construct
a search process for finding solutions. Finally this paper attempts to exploit
the concept of symmetry in improving problem solving.

34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
9
The categories of this paper are: nlin