OpenAI reports failure of polynomial ordered binary matrix removal

One explicit 66×66 binary pattern has no polynomial ordered matrix-removal bound: for every c,C>0 there are binary matrices far from avoiding it but with fewer than c ε^C n^132 induced ordered copies.

Sources for this record

What was already known

Alon, Fischer, and Newman raised the ordered-matrix testing question, and Alon and Ben-Eliezer formulated the polynomial removal question for forbidden binary patterns.

AI involvement AI-led

OpenAI credits itself as manuscript author and states that its internal frontier model produced the results in this release. Individual human input is not detailed enough to establish task-only autonomy.

OpenAI is named as author on the manuscript, and its release attributes the results to an internal frontier model. The individual human input is not detailed enough to establish autonomy.

Importance Notable

Disproves the polynomial ordered binary matrix-removal conjecture with a fixed pattern.

Limitations

Rows and columns are ordered separately; copies match zeros and ones, and the normalized edit distance allows changing entries in either direction.

Technical verification Formal (Lean 4)

OpenAI reports a Lean proof matching the selected claim.

Formal checking

The pinned OpenAI Lean scope note identifies this selected claim.

Checker
OpenAI-reported Lean 4 / Comparator
Scope
One explicit 66×66 binary pattern has no polynomial ordered matrix-removal bound: for every c,C>0 there are binary matrices far from avoiding it but with fewer than c ε^C n^132 induced ordered copies.
Basis
Reported by the linked checker
Evidence source

Checking a formal statement does not establish that it matches the original problem.

Human understanding Few

Few is the default when evidence for a higher level is insufficient. No named person is documented as explaining the central argument for this assessed contribution.

Correction and publication history

2026-10-18 · publication

Primary manuscript, attribution, prior-work, and scoped checking review for non-notifying local inclusion.

Read this published revision