https://dmtcs.episciences.org/en/articles/3409
Excluded subposets in the Boolean lattice | Discrete Mathematics & Theoretical Computer Science |...
We are looking for the maximum number of subsets of an n-element set not containing 4 distinct subsets satisfying $A ⊂B, C ⊂B, C ⊂D$. It is proved that this...
theoretical computer scienceboolean latticediscrete mathematicsexcludedsubposets