http://stackoverflow.com/questions/24220442/define-a-lambda-function-and-execute-it-immediately

gistfile1.cs

using System;

static class L {
    public static Func<T> F<T>(Func<T> f) { return f; }
    // add overloads for other arities
}

class Program {
    static void Main(string[] args) {
        int i = L.F(() => 0)();
    }
}