Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Well-founded Iterations of Infinite Time Turing Machines   Infinite time Turing machines are extended in several ways to allow for
iterated oracle calls. The expressive power of these machines is discussed and
in some cases determined.

32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics