Under my proposal, the orbit of ((1,2),(1,2)) would be the orbit of a pair, i.e. {((1,2),(1,2)), (1,1), (2,2)}. If you want the orbit of pairs of pairs, you can get it as orbit(..., action="OnTuplesTuples").
There is of course a limit of how nested the action is. If you really need orbits of tuples of sets of tuples of sets of tuples then you'll have to relabel the permutation group so that its domain doesn't have tuples or sets. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel?hl=en. For more options, visit https://groups.google.com/groups/opt_out.