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@misc{OAI:Existential-universal-real-sentences-in-the-counting-hierarchy-October-4-2026,
  author = {{OpenAI}},
  title = {{Existential--universal real sentences in the counting hierarchy}},
  howpublished = {OpenAI Math Release preprint
                  \href{https://github.com/openai/math/blob/main/preprints/Existential-universal-real-sentences-in-the-counting-hierarchy-October-4-2026/etr-counting-hierarchy.pdf}{OAI:Existential-universal-real-sentences-in-the-counting-hierarchy-October-4-2026}},
  year = {2026}
}