Engbers J, Hammett A. Trivial Meet and Join within the Lattice of Monotone Triangles. Electron. J. Combin. [Internet]. 2014Jul.21 [cited 2026Apr.30];21(3):#P3.13. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v21i3p13