Find an anti chain with the greatest number of elements in
Chapter 8, Problem 8.30(choose chapter or problem)
Find an anti chain with the greatest number of elements in the poset with the Hasse diagram of Exercise 32 in Section 8.6.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer