Hi -- On Fri, 21 Sep 2007, Xavier Noria wrote: > On Sep 20, 2007, at 6:56 PM, Rick DeNatale wrote: > >> You lost me, so what's the rational which is the successor to 1/3? > > OK, the point is that we are not using the everyday order of Q. Our target > are Ruby ranges, and I took custom orders and succ on a subset of Q to show a > (theoretic) property of Ruby ranges that follows from the fact that they only > assume #<=> and #succ. See Rick's point about #succ, though. Ranges don't assume #succ, though they will make use of it if it's there. David -- * Books: RAILS ROUTING (new! http://www.awprofessional.com/title/0321509242) RUBY FOR RAILS (http://www.manning.com/black) * Ruby/Rails training & consulting: Ruby Power and Light, LLC (http://www.rubypal.com)