Comment by pfdietz

18 hours ago

The formalization is 43.1M lines of Lean.

Is that going to be mathematically useful?

  • It's nice to know that they didn't miss anything. The natural language proof is 10,000 pages and they have missed groups in the past.

    • Indeed, this formalization effort spotted a flawed argument in one of the original publications and worked around it to repair the result.

  • The proof was of such complexity and length there were lingering doubts. This dispels them.

  • More so if Lean uncovers logical errors. Note also there is already an ongoing 2nd generation proof.