Simon, > On a related note, isn't the power series ring over a field itself a > field? Currently, it is not, in Sage: > > sage: (QQ[['x']]).is_field() > False
x has no reciprocal in the power series ring over a field. Of course it does in the Laurent series over a field. --Mark -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en. For more options, visit https://groups.google.com/groups/opt_out.