remark on PJ

diff --git a/exercises/assignment8-9.mdwn b/exercises/assignment8-9.mdwn
index 529811c..fbdeb85 100644 (file)
--- a/exercises/assignment8-9.mdwn
+++ b/exercises/assignment8-9.mdwn
@@ -14,7 +14,8 @@ relationships, as in
 
         John_x thinks Mary_y said he_x likes her_y.
 
 
         John_x thinks Mary_y said he_x likes her_y.
 

-    See her 1999 paper for details.
+    See her 1999 paper for details. Essentially, she ends up layering several
+Reader monads over each other.

 
     Here is [[code for the arithmetic tree Chris presented in week 8|code/arith1.ml]]. It computes
 `\n. (+ 1 (* (/ 6 n) 4))`.  Your task is to modify it to compute
 
     Here is [[code for the arithmetic tree Chris presented in week 8|code/arith1.ml]]. It computes
 `\n. (+ 1 (* (/ 6 n) 4))`.  Your task is to modify it to compute