diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 50e3531..2828442 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -13,7 +13,19 @@
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               "type": "markdown",
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-                "file": "Algo/Séminaire/Chapter 4 - A bit of imperative.md",
+                "file": "Algo/Séminaire/Chapter 5 - Recursivity.md",
+                "mode": "source",
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+              }
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+            "id": "0d2d422aa24bb900",
+            "type": "leaf",
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@@ -85,7 +97,7 @@
             "state": {
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                 "sortOrder": "alphabetical",
@@ -102,7 +114,7 @@
             "state": {
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-                "file": "Algo/Séminaire/Chapter 4 - A bit of imperative.md",
+                "file": "Algo/Séminaire/Chapter 5 - Recursivity.md",
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@@ -125,7 +137,7 @@
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-                "file": "Algo/Séminaire/Chapter 4 - A bit of imperative.md"
+                "file": "Algo/Séminaire/Chapter 5 - Recursivity.md"
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@@ -158,16 +170,16 @@
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-    "Algo/Séminaire/assets/exception-meme.png",
-    "Algo/Séminaire/assets/filter-meme.png",
-    "Algo/Séminaire/assets/if-meme.png",
-    "Algo/Séminaire/Exercices seminaire.md",
+    "Algo/Séminaire/Chapter 4 - A bit of imperative.md",
     "Algo/Séminaire/Chapter 3 - Case analysis.md",
     "Algo/Séminaire/Chapter 2 - Functions.md",
     "Algo/Séminaire/Chapter 1 - CAML basics.md",
     "Algo/Séminaire/Chapter 5 - Recursivity.md",
+    "Algo/Séminaire/assets/exception-meme.png",
+    "Algo/Séminaire/assets/filter-meme.png",
+    "Algo/Séminaire/assets/if-meme.png",
+    "Algo/Séminaire/Exercices seminaire.md",
     "Algo/Séminaire/assets/basics-meme.png",
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     "Algo/Séminaire/assets/functions-meme.jpg",
     "Algo/Séminaire/assets/unitaire-meme.png",
     "Algo/Séminaire/Introduction.md",
@@ -182,7 +194,6 @@
     "Algo/Séminaire/Weird stuff.md",
     "Algo/Séminaire/assets/69E2987C-209A-48CD-8964-5A60462966E5.jpg",
     "Algo/Séminaire/assets",
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diff --git a/Algo/Séminaire/Chapter 3 - Case analysis.md b/Algo/Séminaire/Chapter 3 - Case analysis.md
index a26b836..83453c3 100644
--- a/Algo/Séminaire/Chapter 3 - Case analysis.md	
+++ b/Algo/Séminaire/Chapter 3 - Case analysis.md	
@@ -1,5 +1,7 @@
 ## 3.1. The alternative 
 
+<center><img src="https://gitea.louisgallet.fr/lgallet/epicours/raw/branch/main/Algo/S%C3%A9minaire/assets/if-meme.png" width=auto height=400 /> </center>  
+
 ### The if structure
 ```Ocaml
 if cond then expr1 else expr2
@@ -21,6 +23,10 @@ val abs : int -> int <fun>
 ```
 
 ## 3.2. Exceptions
+
+
+<center><img src="https://gitea.louisgallet.fr/lgallet/epicours/raw/branch/main/Algo/S%C3%A9minaire/assets/exception-meme.png" width=auto height=400 /> </center>  
+
 ### Division by 0:
 ```Ocaml
 # 1/0
@@ -51,6 +57,10 @@ val div int -> int -> int = <fun>
 ```
 
 ## 3.3. Filtering
+
+
+<center><img src="https://gitea.louisgallet.fr/lgallet/epicours/raw/branch/main/Algo/S%C3%A9minaire/assets/filter-meme.png " width=auto height=400 /> </center>  
+
 ### Explicit filtering
 
 > Explicit means that you matches the value