diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 84b2045..c66c683 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -13,7 +13,7 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "Algo/Courses/Chapter 6 - Lists (Exercises).md",
+                "file": "Algo/Courses/Chapter 6 - Lists.md",
                 "mode": "source",
                 "source": false
               }
@@ -69,8 +69,7 @@
       }
     ],
     "direction": "horizontal",
-    "width": 300,
-    "collapsed": true
+    "width": 300
   },
   "right": {
     "id": "b83c16dd7908c658",
@@ -86,7 +85,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "Algo/Courses/Chapter 6 - Lists (Exercises).md",
+                "file": "Algo/Courses/Chapter 6 - Lists.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -103,7 +102,7 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "Algo/Courses/Chapter 6 - Lists (Exercises).md",
+                "file": "Algo/Courses/Chapter 6 - Lists.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               }
@@ -126,7 +125,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "Algo/Courses/Chapter 6 - Lists (Exercises).md"
+                "file": "Algo/Courses/Chapter 6 - Lists.md"
               }
             }
           },
@@ -157,10 +156,10 @@
       "command-palette:Open command palette": false
     }
   },
-  "active": "c473a791e2b34194",
+  "active": "f1000ea0f0e6db20",
   "lastOpenFiles": [
-    "Algo/Courses/Chapter 7 - High Order (exercises).md",
     "Algo/Courses/Chapter 6 - Lists (Exercises).md",
+    "Algo/Courses/Chapter 7 - High Order (exercises).md",
     "Algo/Courses/Chapter 6 - Lists.md",
     "Algo/Séminaire/Chapter 1 - CAML basics.md",
     "Algo/CM/CM du 04 octobre.md",
diff --git a/Algo/Courses/Chapter 6 - Lists.md b/Algo/Courses/Chapter 6 - Lists.md
index 05a0d82..5ba4a78 100644
--- a/Algo/Courses/Chapter 6 - Lists.md	
+++ b/Algo/Courses/Chapter 6 - Lists.md	
@@ -16,7 +16,7 @@ _: int list = [1, 2, 3]
 > In CAML, all the element in the list have to be of the same type. 
 
 ```Ocaml
-# let l1 = ['H', 'i'];;
+# let l1 = ['H'; 'i'];;
 val l1 : char list = ['H'; 'i']
 # let l2 = ['C'; 'a'; 'm'; 'l'];;
 val l2 : char list = ['C' ; 'a' ;'m'; 'l']