Exact antichain saturation numbers via a generalisation of a result of Lehman-Ron

Paul Bastide, Carla Groenland, Hugo Jacob +1

For given positive integers $k$ and $n$, a family $\mathcal{F}$ of subsets of $\{1,\dots ,n\}$ is $k$-antichain saturated if it does not contain an antichain of size $k$, but adding…