Yo ! > Interval fields apparently hide this (intervals are "equal" if they have > non-empty intersection?), but of course hash cannot respect this, because > this notion of "equality" isn't transitive. The bug is that CIF elements are > hashable at all.
I see. Graphs would not like non-transitive equality either :-P 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.