Oct 8 16 days ago

1. 21:38

   Sync from openai/math@faee2cf485a8 (part 27)

   roseking
   Verified signature

   d23d6f3
2. 21:11

   Sync missing files (lean, preprints, history.md); remove stale build artifacts (part 13)

   roseking
   Verified signature

   4933cf7