Combinatorics·OpenAI Math·Result 184·Lean formalisation listed

Correspondence coloring with a fixed forbidden subgraph

One of the 372 results in OpenAI's public mathematics catalogue, filed under combinatorics: 2 preprints, the latest dated 5 October 2026. This page quotes OpenAI's own summary of the claim, links the papers and abstracts, and embeds the animation.

In one line: OpenAI reports a result titled ‘Correspondence coloring with a fixed forbidden subgraph’ (combinatorics) in 2 preprints, the latest dated 5 October 2026. It has not been peer reviewed. The channel's animation, Every OpenAI Math Result, Part 4 of 4: L = BPL, Integer Multiplication and 82 More, is on YouTube.

Compilation · 29:10 · 14 October 2026 · from 8:00Watch on YouTube →

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Chapter 24 of 84 in Every OpenAI Math Result, Part 4 of 4: L = BPL, Integer Multiplication and 82 More · starts at 8:00 · watch from there on YouTube →

What OpenAI claims

Proves the Alon–Krivelevich–Sudakov coloring conjecture in correspondence-coloring form: graphs avoiding any fixed subgraph F need OF(Δ/log Δ) colors when their maximum degree Δ is sufficiently large. Also proves the Ajtai–Erdős–Komlós–Szemerédi independence conjecture: for fixed r ≥ 4, every n-vertex Kr-free graph of average degree d ≥ 2 has an independent set of size Ωr(n log d/d). (Lean)

Papers (2)

  1. Correspondence coloring graphs with a forbidden clique

    · Preprint, not peer reviewed · PDF

    OpenAI's abstract For every fixed integer r ≥ 4, we prove that every Kr-free graph of sufficiently large maximum degree Δ has correspondence chromatic number Or(Δ/log Δ). This resolves the Alon–Krivelevich–Sudakov coloring conjecture in the stronger correspondence-coloring form. The same bound, with a constant depending on F, holds when any fixed graph F is excluded as an ordinary subgraph. Ordinary and list coloring satisfy the same bounds.

  2. A logarithmic independence bound for clique-free graphs

    · Preprint, not peer reviewed · PDF

    OpenAI's abstract For every fixed integer r ≥ 4, every Kr-free graph on n vertices with average degree d ≥ 2 has an independent set of size at least cr n log d/d, where cr > 0 depends only on r. This proves the fixed-clique-size independence conjecture of Ajtai, Erdős, Komlós and Szemerédi.

Status

Preprint. The papers have not been independently reviewed. Treat the result as OpenAI's claim until other mathematicians have checked it. If a video exists, it illustrates the statement; it is not the proof.

Quick answers

Is it proven?
Not independently yet. OpenAI posted 2 preprints, the latest dated 5 October 2026; it has not been peer reviewed, so treat the result as OpenAI's claim until other mathematicians have checked it.
What exactly does OpenAI claim?
Proves the Alon–Krivelevich–Sudakov coloring conjecture in correspondence-coloring form: graphs avoiding any fixed subgraph F need OF(Δ/log Δ) colors when their maximum degree Δ is sufficiently large. Also proves the Ajtai–Erdős–Komlós–Szemerédi independence conjecture: for fixed r ≥ 4, every n-vertex Kr-free graph of average degree d ≥ 2 has an independent set of size Ωr(n log d/d). (Lean)
Where is the proof?
In the paper, Correspondence coloring graphs with a forbidden clique (PDF).
Is there a video?
Yes, on YouTube (29:10, chapter 24).

Also in

The video

Every OpenAI Math Result, Part 4 of 4: L = BPL, Integer Multiplication and 82 More · Compilation · 29:10 · chapter 24 from 8:00 · description, sources and chapters →

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