Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Multiple Deaths of Whitehead's Theory of Gravity   Whitehead's 1922 theory of gravitation continues to attract the attention of
philosophers, despite evidence presented in 1971 that it violates experiment.
We demonstrate that the theory strongly fails five quite different experimental
tests, and conclude that, notwithstanding its meritorious philosophical
underpinnings, Whitehead's theory is truly dead.

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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: math-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: acc-phys
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: solv-int
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The categories of this paper are: supr-con
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The categories of this paper are: cmp-lg
1
The categories of this paper are: cs