Oct 8 21 days ago

1. 21:38

   Sync from openai/math@faee2cf485a8 (part 22)

   roseking
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   c8720e4
2. 21:10

   Sync missing files (lean, preprints, history.md); remove stale build artifacts (part 10)

   roseking
   Verified signature

   8d25a7f
3. 21:10

   Sync missing files (lean, preprints, history.md); remove stale build artifacts (part 9)

   roseking
   Verified signature

   1fbab85