diff --git a/u2/list_ops.py b/u2/list_ops.py
index 45bc203..bc1d92e 100644
--- a/u2/list_ops.py
+++ b/u2/list_ops.py
@@ -12,39 +12,39 @@ def concat(lists):
         result = append(result, sublist)
     return result
 
-def filter(function, list):
+def filter(function, lst):
     result = []
     for item in list:
         if function(item):
             result += [item]
     return result
 
-def length(l):
+def length(lst):
     result = 0
-    for item in l:
+    for item in lst:
         result +=1
     return result    
 
-def map(function, list):
+def map(function, lst):
     result = []
-    for item in list:
+    for item in lst:
         result += [function(item)]
     return result
 
-def foldl(function, list, initial):
+def foldl(function, lst, initial):
     acc = initial
-    for item in list:
+    for item in lst:
         acc = function(acc, item)
     return acc    
 
-def foldr(function, list, initial):
+def foldr(function, lst, initial):
     acc = initial
-    for acc in  list:
+    for acc in  lst:
         acc = function(acc, item)
     return acc
 
-def reverse(list):
+def reverse(lst):
     result = []
-    for item in list:
+    for item in reverse(lst):
         result = [item] + result
     return result
\ No newline at end of file