ogposets

Implements oriented graded posets, their elements, subsets, and maps.

rewalt.ogposets.OgPoset(face_data, ...)	Class for oriented graded posets, that is, finite graded posets with an orientation, defined as a {'-', '+'}-labelling of the edges of their Hasse diagram.
rewalt.ogposets.OgMap(source, target[, mapping])	Class for (partial) maps of oriented graded posets, compatible with boundaries.
rewalt.ogposets.El(dim, pos)	Class for elements of an oriented graded poset.
rewalt.ogposets.GrSet(*elements)	Class for sets of elements of an oriented graded poset, graded by their dimension.
rewalt.ogposets.GrSubset(support, ambient, ...)	Class for graded subsets, that is, pairs of a GrSet and an "ambient" OgPoset, where the first is seen as a subset of the second.
rewalt.ogposets.Closed(support, ambient, ...)	Subclass of GrSubset for (downwards) closed subsets.
rewalt.ogposets.OgMapPair(fst, snd)	Class for pairs of maps of oriented graded posets.