> The multiplication law in a ring is never a group law sice zero is not > invertible, so, for multiplication we have to select the invertible > elements, those form the unig group.
Perhaps you should consider adding an alias or renaming it. I would miss it every time. Nathann -- 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. For more options, visit https://groups.google.com/d/optout.