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The Erdős–Szemerédi sunflower conjecture

Matija Bucić, Fankang He, Hyunwoo Lee

Palomar Registrypalomar/PALOMAR-2026-10-22-000016Oct 22, 2026math.COscore 0

A Lean formalization of the main vector bound, the explicit set-family bound, and the no-prefactor conjecture in Proof of the Erdős-Szemerédi sunflower conjecture by Matija Bucić, Fankang He, and Hyunwoo Lee (arXiv:2610.26686). The complete proof development uses Mathlib and contains no unresolved proof holes or nonstandard axioms.

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