Not evaluated
Erdős problem #750: full solution according to the wiki (GPT-5.5 Pro)
The gist
According to the wiki of AI contributions, Przemek Chojecki reportedly obtained, with GPT-5.5 Pro, a full solution to Erdős problem #750, announced on May 3, 2026.
DiscoverIA status on October 12, 2026: not evaluated, meaning no third-party evaluation found.
AI draft, not reviewedWhat has not been reviewed?
Text written by an AI (DiscoverIA pipeline), on . The status and its sources come from the registry; only the explanatory text has not been reviewed. A reported error is corrected, then the text is reviewed.
Cite this entry
A single status snapshot since Oct 12, 2026: a citation always points to a dated snapshot.
Cite snapshot 1, Oct 12, 2026
APA citation with the dated link
BibTeX @misc, key discoveria-erdos-750-gpt-5-5-pro-1d-r1
@misc{discoveria-erdos-750-gpt-5-5-pro-1d-r1,
author = {{DiscoverIA}},
title = {Erdős problem #750: full solution according to the wiki (GPT-5.5 Pro)},
howpublished = {DiscoverIA registry, entry erdos-750-gpt-5-5-pro-1d},
note = {Status “Not evaluated”, snapshot 1, recorded on October 12, 2026. New result},
year = {2026},
url = {https://discoveria.ai/entry/erdos-750-gpt-5-5-pro-1d#releve-1},
urldate = {2026-10-12}
}Dated link opens this snapshot in the history
To understand ≈ 30 s reading time, estimated
What it changes
Problem #750 is classed under graph theory, with the chromatic number as a theme. This is the smallest number of colours that lets the vertices of a graph (points joined by links) be coloured so that two joined vertices get different colours. If this solution held, no part of the problem would remain open. According to erdosproblems.com, it was listed as “proved” on October 12, 2026, and the sources read do not say whether that is due to this contribution.
What remains unclear
The sources read do not give the text of the solution and do not say who checked it. They also do not specify what Przemek Chojecki and GPT-5.5 Pro each contributed.
For experts
Sources, method, key facts, status history, report an error
Status
Not evaluated
Recorded on · github.com · wiki
Step 1 of 4 on the scale: not evaluated. Next step: under review.
- Announced
- Wiki frozen
- Recordednot evaluated
- nextTo follow
What this status means
Source reading : Source read word for word (level 3 of 3)
The result is declared neither right nor wrong.
To move to “Under review”: a public review under way. To “Peer reviewed”: a journal publication or a review by named experts.
Dated archive: status recorded on the wiki frozen on Jun 30, 2026
Sources
- Main sourcegithub.com · wikipage read word for word · consulted on Oct 12, 2026
- Reference listerdosproblems.comlink only, reading not recorded
- Corroborationterrytao.wordpress.compage read word for word · consulted on Oct 17, 2026 ·
We have created a github repository to coordinate this process
- Repositorygithub.com · CONTRIBUTING.mdpage read word for word · consulted on Oct 17, 2026 ·
this status is an unofficial crowdsourced classification of the problem
Method
Source: the “AI contributions to Erdős problems” wiki of the teorth/erdosproblems repository (a repository presented by Terence Tao in his blog post of August 31, 2025); frozen on June 30, 2026 (commit c8ad430, “freeze”) and read on October 12, 2026 in the git repository. Category 1(d), “AI collaborating with humans” (significant human involvement). Humans named by the wiki: Przemek Chojecki; AI system: GPT-5.5 Pro. Date given by the wiki: May 3, 2026. Exact text: “Full solution”; green flag (“full resolution”, according to the wiki's legend). Literature cited by the wiki: none. Status of the problem in the teorth/erdosproblems community database (data/problems.yaml, unofficial classification, snapshot of October 12, 2026 with no commit identified, current state, not that of June 2026): proved, answered in the affirmative (informal_status=proved); a solution has been formalised in Lean (formal_status=Lean). This status concerns the problem, not this contribution. Problem page not read by DiscoverIA: https://www.erdosproblems.com/750. DiscoverIA status: not evaluated (only the wiki's classification exists). Recorded on October 12, 2026.
Limits
DiscoverIA has not checked this contribution itself.
Key facts
- Claimed by
- Przemek Chojecki with GPT-5.5 Pro, according to the AI-Erdős wiki
announced on May 3, 2026 - Nature
- new result
- Field
- Mathematics (Erdős problem #750 (graph theory ; chromatic number))
- Wiki category
- AI collaborating with humans (IA en collaboration avec des humains ; implication humaine significative)
- Wiki verdict
- « Full solution » : 🟢 résolution complète (légende du wiki)
- Checked by
- no verifier identified
- Sources
- 4 : 3 read word for word, 1 link only
- This entry
- AI draft, not reviewed
Status history
Only one observation so far.
An observation is added; none is ever erased.
In the same set
AI contributions to Erdős problems (wiki by T. Tao, frozen on June 30, 2026) · entry 303 of 521, by problem number
- Not evaluated : Erdős problem #749: partial results found in the literature according to the wiki (GPT-5.4 Thinking)
- Not evaluated : Erdős problem #750: formalisation by Claude Code, Claude Opus 4.7 and GPT-5.5 Pro (proof: Chojecki and GPT-5.5 Pro (2026))
- Not evaluated : Erdős problem #750: partial results found in the literature according to the wiki (GPT-5)
- Not evaluated : Erdős problem #750: full solution according to the wiki (GPT-5.5 Pro)
- Not evaluated : Erdős problem #751: formalisation by GPT-5.2-Codex, GPT-5.2 Thinking (proof: Bondy and Vince (1998))
- Not evaluated : Erdős problem #753: formalisation by Aristotle (proof: Alon (1992))
- Not evaluated : Erdős problem #756: formalisation by Aristotle (proof: Bhowmick (2024))
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