diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index dfe9945..60e343d 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -13,12 +13,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "Concurrent Systems/notes/4 - Semaphores.md",
+                "file": "Concurrent Systems/notes/2 - Fast mutex by Lamport.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "4 - Semaphores"
+              "title": "2 - Fast mutex by Lamport"
             }
           }
         ]
@@ -191,8 +191,8 @@
   },
   "active": "6550032d28b9171c",
   "lastOpenFiles": [
-    "Concurrent Systems/notes/4b - Monitors.md",
     "Concurrent Systems/notes/4 - Semaphores.md",
+    "Concurrent Systems/notes/4b - Monitors.md",
     "Concurrent Systems/notes/3b - Aravind's algorithm and improvements.md",
     "Concurrent Systems/notes/10 - Implementing Consensus.md",
     "Concurrent Systems/notes/1b - Peterson algorithm.md",