> bruhat_p_order = lambda p,q : p.bruhat_lequal(q) > my_poset = Poset([perms, bruhat_p_order]) > > It seems that when I create the poset, the elements are no longer > permutations but "PosetElement"s, and I can't figure out how to > "recover" the elements as permutations. I can't even coerce them back > to permutations by writing Permutation(my_poset[i]). Specifically, I > am creating the poset in order to find all possible total orders of > the poset. Once I have the total orders, I'd like to be able to call > on the elements again as permutations. > > Any help is much appreciated!
The following seems to work: sage: perms = Permutations(5) sage: bruhat_p_order = lambda p,q : p.bruhat_lequal(q) sage: my_poset = Poset([perms, bruhat_p_order]) sage: sage: x = my_poset[5]; x [1, 2, 4, 5, 3] sage: type(x) <class 'sage.combinat.posets.elements.PosetElement'> sage: x.element [1, 2, 4, 5, 3] sage: type(x.element) <class 'sage.combinat.permutation.Permutation_class'> Here element is an attribute which contains the original element, a permutation. You can get this information with: sage: sage.combinat.posets.elements.PosetElement? Dan -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
