It is, sorry. I was writing that all without checking it and I can't edit now. I wrote a post elaborating the ideas here: http://tel.github.io/2014/07/09/calki

It is, sorry. I was writing that all without checking it and I can't edit now. I wrote a post elaborating the ideas here: http://tel.github.io/2014/07/09/calkin_wilf_for_early-ish_haskellers/ http://tel.github.io/2014/07/09/calkin_wilf_for_early-ish_ha...