feat(ErdosProblems): 847 #1400
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feat(ErdosProblems): 847 #1400
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YaelDillies
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Dec 20, 2025
YaelDillies
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Paul-Lez
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Jan 9, 2026
Co-authored-by: Paul Lezeau <paul.lezeau@gmail.com>
with HasFew3APs name instead of h\eps
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Done! thanks |
YaelDillies
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Jan 19, 2026
Co-authored-by: Yaël Dillies <yael.dillies@gmail.com>
smmercuri
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Jan 21, 2026
Co-authored-by: Paul Lezeau <paul.lezeau@gmail.com>
Co-authored-by: Paul Lezeau <paul.lezeau@gmail.com>
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Let$A \subset \mathbb{N}$ be an infinite set for which there exists some $\epsilon > 0$ such that$A$ of size $n$ there is a subset of size at least $\epsilon n$ which contains no
in any subset of
three-term arithmetic progression.
Is it true that$A$ is the union of a finite number of sets which contain no three-term arithmetic
progression?
Closes #973