[lmm]

I found http://www.arcfn.com/2009/03/y-combinator-in-arc-and-java.ht... a much clearer explanation of what the Y combinator is and why it's useful.

[brianberns]

Thanks. That led me to a nice C# version here: http://blogs.msdn.com/b/madst/archive/2007/05/11/recursive-l...