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Preprint · arXiv · 16 Aug 2026 · Mathematics · Not signed on Papex

How Many Samples Are Needed to Determine Causal Direction? Sharp Minimax Bounds for Bivariate LiNGAM

Jikai Jin

AI use, as the source states it

“The proof was independently generated with GPT-5.6 Sol in Codex's Ultra mode during a two-hour session.”

Model: GPT-5.6 Sol, Codex, as stated

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