On Thu, Apr 5, 2012 at 2:04 AM, Aaron Meurer <asmeu...@gmail.com> wrote: > > So an ideal class structure would represent this. CommutativeRing > would derive from Ring, but not all subclasses of Ring would be > subclasses of CommutativeRing.
Totally right. > It may make sense to have Ring derive > from Ideal. If you remove important aspects like the multiplicative > identity, it ceases to be a ring, which is why we have all these other > lesser classes like Ideals. I wouldn't agree that "ideal" is a more general notion that a "ring", mostly because one cannot define "ideal" out of the context of a "ring". Therefore, if a ring is unital by definition, I maintain that no inheritance should be introduced between Ring and Ideal. Sergiu -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
