trac #17042: Improvement to subsets_with_hereditary_property
trac #17042: Bad code. Bad code everywhere.
trac #17042: New rules keep on appearing
Added one-line wrapper to get maximal antichains of a poset.
Updated Sage version to 6.4.beta4
Trac #17042: Improvement to subsets_with_hereditary_property

I just noticed something useful I could use for my current problem, and
it may also be useful to others. I hope it's not too "custom".

It can also be applied to Dima's example in the doc, as in his case the
obstructions have size 3.

Nathann

URL: http://trac.sagemath.org/17042
Reported by: ncohen
Ticket author(s): Nathann Cohen
Reviewer(s): Dima Pasechnik
Trac #17050: Add maximal_antichains() to poset

This is just a one-line wrapper to get all maximal antichains of a
poset.

URL: http://trac.sagemath.org/17050
Reported by: jmantysalo
Ticket author(s): Jori Mäntysalo
Reviewer(s): Nathann Cohen