Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A direct proof of the confluence of combinatory strong reduction   I give a proof of the confluence of combinatory strong reduction that does
not use the one of lambda-calculus. I also give simple and direct proofs of a
standardization theorem for this reduction and the strong normalization of
simply typed terms.

33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin