# A 30-year-old open problem in complexity theory resolved by GPT-5.6 Pro

> Source: <https://zenodo.org/records/21431468>
> Published: 2026-07-18 17:30:22+00:00

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**Reference:** `0f02c07b93a878964c91956abe9c07f9`

**Timestamp:** `2026-07-18T19:51:06+02:00`