Dear Johannes, I have a lot of trouble understanding your question. Your I is sometimes an ideal and sometimes a ring and for me there is a huge difference between those concepts (i.e. my rings always have an identity, and for every ring I only one ideal with identity).
Thanks, Maarten -- 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
