You will find here some raw research code and a demo related to the following papers:
 G. Chatel, V. Pilaud, and V. Pons. The weak order on integer posets. 2017+.
 V. Pilaud and V. Pons. The Hopf algebra of integer binary relations 2018+.
They present examples and implementations of the computations and algorithms described in the papers. You can run them yourself and experiment by clicking on this binder link. (Expect to wait a few minutes for the server to load).