Elements of posets, lattices, semilattices, etc.¶
- class sage.combinat.posets.elements.JoinSemilatticeElement(poset, element, vertex)[source]¶
Bases:
PosetElement
- class sage.combinat.posets.elements.MeetSemilatticeElement(poset, element, vertex)[source]¶
Bases:
PosetElement
- class sage.combinat.posets.elements.PosetElement(poset, element, vertex)[source]¶
Bases:
ElementEstablish the parent-child relationship between
posetandelement, whereelementis associated to the vertexvertexof the Hasse diagram of the poset.INPUT:
poset– a poset objectelement– any objectvertex– a vertex of the Hasse diagram of the poset