Hi, I found that sage.categories.groupoid exists but somewhat confusing (no explanation of what it should be and the example is even more obscure). First of all I would have name the module sage.categories.groupoids.
What I want to do is to define the set of paths in a graph and this for me is a groupoid (where the inversion is defined everywhere but not the composition). Does anybody knows what was the purpose of sage.categories.groupoid ? It seems to be used in an essential way in sage.categories.action but nowhere else. Best, Vincent -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/groups/opt_out.
