fsharp/FSharpLangDesign — pull request #18 by PatrickMcDonald (2014-08-16 22:41:35+00:00)
Title: Assign foldBack and reduceBack

PR Submitted to visualfsharp
https://visualfsharp.codeplex.com/SourceControl/network/forks/PatrickMcDonald/visualfsharp/contribution/7293