Lean is better for proper maths than all the other theorem provers(xenaproject.wordpress.com)
xenaproject.wordpress.com
Lean is better for proper maths than all the other theorem provers
https://xenaproject.wordpress.com/2020/02/09/lean-is-better-for-proper-maths-than-all-the-other-theorem-provers/
Piling on, I wouldn't mind seeing a formalization of Grigori Perelman's proof of the Poincaré conjecture. But I am probably dreaming.