-*- M2 -*- Title: Posets Description: An M2 package for working with posets. This would also link nicely with the SimplicialComplexes.m2 package. For instance, from the point of view of an M2 user, a poset would be input/displayed by a list of pairs giving the covering relations in the Hasse diagram, and the package would also have a number of predefined posets (Boolean, Chains, etc) and be able to do some basic operations on them (e.g. product, closure, etc). Also compute the Moebius function, check if the poset is a lattice, compute the atomic complex, order complex, etc ============================================================================= Proposed by: Sorin Popescu Potential Advisor: Project assigned to: Alexandra Seceleanu Current status: list of functions drawn up ============================================================================= Progress log: Summer, 2008: Sonya Mapes has been working on code in this direction. July 31, 2009: a new package, "Posets", version 0.1, submitted by Sonya Mapes, Gwyn Whieldon, and Josephine Yu.