https://leanprover-community.github.io/mathlib4_docs/Mathlib/Combinatorics/SetFamily/Shatter.html
Mathlib.Combinatorics.SetFamily.Shatter
mathlibcombinatoricsshatter
https://leanprover-community.github.io/mathlib4_docs/Mathlib/Combinatorics/SetFamily/Intersecting.html
Mathlib.Combinatorics.SetFamily.Intersecting
mathlibcombinatoricsintersecting