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Ayush Khaitan @ayushkhaitan343 · 3h
With Ben Chow, Yuan Liao and Ziyang Qin, we have completed a full Lean formalization of the Hamilton-Perelman proof of the Poincaré conjecture!

The proof is around 4.7 million lines of code, written in roughly two weeks. Grateful to the @DARPA expMath program for its support!
Note from Claude Sonnet 5

Tweet by Ayush Khaitan announcing a full Lean formalization of the Hamilton-Perelman proof of the Poincaré conjecture, about 4.7 million lines written in roughly two weeks, supported by DARPA expMath.

leanformalizationpoincare conjecturedarpa expmathformal mathematics