diff --git a/.obsidian/app.json b/.obsidian/app.json
index b3ea143..4a6898c 100644
--- a/.obsidian/app.json
+++ b/.obsidian/app.json
@@ -7,5 +7,6 @@
     "landscape": false,
     "margin": "2",
     "downscalePercent": 100
-  }
+  },
+  "promptDelete": false
 }
\ No newline at end of file
diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index c573f25..5aacc00 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -83,12 +83,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "DAS/Arithmetic.md",
+                "file": "Studium/DAS/Formulas.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "Arithmetic"
+              "title": "Formulas"
             }
           }
         ],
@@ -250,27 +250,30 @@
       "obsidian-git:Open Git source control": false
     }
   },
-  "active": "7d1b3d98021093a7",
+  "active": "7a0e7b37bd89861d",
   "lastOpenFiles": [
-    "DAS/Counting.md",
-    "DAS/Relations.md",
-    "DAS/Groups.md",
-    "DAS/Logic.md",
-    "DAS/Functions.md",
-    "DAS/Set Theory.md",
-    "DAS/Studium.md",
-    "DAS/Arithmetic.md",
+    "Studium/Mathe II",
+    "Studium",
+    "Untitled.md",
+    "Studium/DAS/Arithmetic.md",
+    "Studium/DAS/Counting.md",
+    "Studium/DAS/Relations.md",
+    "Studium/DAS/Groups.md",
+    "Studium/DAS/Logic.md",
+    "Studium/DAS/Functions.md",
+    "Studium/DAS/Set Theory.md",
+    "Studium/DAS/Studium.md",
     "DAS/merge.md",
     "DAS/export.css",
-    "Formulas.md",
+    "Studium/DAS/Formulas.md",
     "mathe/notation.md",
-    "ET/Netzwerke.md",
-    "ET/Kirchhoffsche Regeln.md",
-    "ET/Grundlagen.md",
-    "DAS",
-    "ET/images/beispiel_knotenregel.png",
-    "ET/images",
-    "ET",
+    "Studium/ET/Netzwerke.md",
+    "Studium/ET/Kirchhoffsche Regeln.md",
+    "Studium/ET/Grundlagen.md",
+    "Studium/DAS",
+    "Studium/ET/images/beispiel_knotenregel.png",
+    "Studium/ET/images",
+    "Studium/ET",
     "mathe/notation.md~",
     "mathe/4913",
     "mathe"
diff --git a/.trash/Untitled 3.md b/.trash/Untitled 3.md
new file mode 100644
index 0000000..e69de29
diff --git a/mathe/notation.md b/.trash/mathe/notation.md
similarity index 100%
rename from mathe/notation.md
rename to .trash/mathe/notation.md
diff --git a/DAS/Arithmetic.md b/Studium/DAS/Arithmetic.md
similarity index 100%
rename from DAS/Arithmetic.md
rename to Studium/DAS/Arithmetic.md
diff --git a/DAS/Counting.md b/Studium/DAS/Counting.md
similarity index 100%
rename from DAS/Counting.md
rename to Studium/DAS/Counting.md
diff --git a/Formulas.md b/Studium/DAS/Formulas.md
similarity index 100%
rename from Formulas.md
rename to Studium/DAS/Formulas.md
diff --git a/DAS/Functions.md b/Studium/DAS/Functions.md
similarity index 100%
rename from DAS/Functions.md
rename to Studium/DAS/Functions.md
diff --git a/DAS/Groups.md b/Studium/DAS/Groups.md
similarity index 100%
rename from DAS/Groups.md
rename to Studium/DAS/Groups.md
diff --git a/DAS/Logic.md b/Studium/DAS/Logic.md
similarity index 100%
rename from DAS/Logic.md
rename to Studium/DAS/Logic.md
diff --git a/DAS/Relations.md b/Studium/DAS/Relations.md
similarity index 100%
rename from DAS/Relations.md
rename to Studium/DAS/Relations.md
diff --git a/DAS/Set Theory.md b/Studium/DAS/Set Theory.md
similarity index 100%
rename from DAS/Set Theory.md
rename to Studium/DAS/Set Theory.md
diff --git a/DAS/Studium.md b/Studium/DAS/Studium.md
similarity index 100%
rename from DAS/Studium.md
rename to Studium/DAS/Studium.md
diff --git a/ET/Grundlagen.md b/Studium/ET/Grundlagen.md
similarity index 100%
rename from ET/Grundlagen.md
rename to Studium/ET/Grundlagen.md
diff --git a/ET/Kirchhoffsche Regeln.md b/Studium/ET/Kirchhoffsche Regeln.md
similarity index 100%
rename from ET/Kirchhoffsche Regeln.md
rename to Studium/ET/Kirchhoffsche Regeln.md
diff --git a/ET/Netzwerke.md b/Studium/ET/Netzwerke.md
similarity index 100%
rename from ET/Netzwerke.md
rename to Studium/ET/Netzwerke.md
diff --git a/ET/images/beispiel_knotenregel.png b/Studium/ET/images/beispiel_knotenregel.png
similarity index 100%
rename from ET/images/beispiel_knotenregel.png
rename to Studium/ET/images/beispiel_knotenregel.png