Thank you for your helpful responses. I draw from them the lesson that even beginning users need to learn about the "inheritance tree" and about the difference between "top level" and other functions. On the other hand, it's gratifying to know that the strange behavior that I encountered is considered to be a bug by the experts. Best, Ken R
-- 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 To unsubscribe, reply using "remove me" as the subject.
