If Lean lacks the necessary completeness, Kevin Buzzard can extend it by building additional libraries.

“he he so the professor is kevin buzzard and he got like a grant and now he's just like focused on writing the proof for ling he's he's hoping to finish that in like two or three years and uh and then basically like if ling is not complete then he can just build more more libraries on top of that so so everything is doable it's just time”