Thomas Hales
Mathematician, University of Pittsburgh, as of 9 October 2026. Source: terrytao.wordpress.com
Proved the Kepler conjecture and led its Flyspeck formal verification; in Oct 2026 wrote on Lean’s reliability after the ‘Summer of Soundness Bugs’.
In the news
2 events on Post-Cutoff name Thomas Hales, newest first.
Posts
1 archived post by or about Thomas Hales, newest first.
-
Thomas Hales: What mathematicians should know about the Lean Theorem Prover: questions of reliability and AI (guest post on Terence Tao’s blog)
The Kepler-conjecture prover’s account of the 2026 ‘Summer of Soundness Bugs’ in Lean, published as AI labs rely on Lean to back their math claims.