Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrinos and the Weak Interactions   We show that neutrinos and electrons share the same theoretical structure,
and satisfy parallel relations particularly of the Large Number kind. We then
argue that the neutrino can be described as a ``cold'' electron in a sense that
is detailed, and thereby the weak interactions are indeed a weak form of
electromagnetism.

9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph