diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 83d1dc2..c6d84f8 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -68,7 +68,8 @@
               "title": "class 11"
             }
           }
-        ]
+        ],
+        "currentTab": 1
       }
     ],
     "direction": "vertical"
@@ -238,10 +239,10 @@
       "companion:Toggle completion": false
     }
   },
-  "active": "84845736e00d5c98",
+  "active": "364a7591f14f033a",
   "lastOpenFiles": [
-    "Concurrent Systems/slides/class 12.pdf",
     "Concurrent Systems/notes/12 - CCS (che non so cosa voglia dire).md",
+    "Concurrent Systems/slides/class 12.pdf",
     "Pasted image 20250414173011.png",
     "Pasted image 20250414164549.png",
     "Concurrent Systems/notes/images/Pasted image 20250414082824.png",
diff --git a/Concurrent Systems/notes/12 - CCS (che non so cosa voglia dire).md b/Concurrent Systems/notes/12 - CCS (che non so cosa voglia dire).md
index f01eddd..526cf69 100644
--- a/Concurrent Systems/notes/12 - CCS (che non so cosa voglia dire).md	
+++ b/Concurrent Systems/notes/12 - CCS (che non so cosa voglia dire).md	
@@ -160,13 +160,13 @@ What if we restrict on b?
 ![](../../Pasted%20image%2020250414173011.png)
 
 ##### Example 1:
-as $a$ is not in $\{b, \bar{b}\}$, we will see the transitions:
+since $a$ is not in $\{b, \bar{b}\}$, we will see the transitions:
 $$
 \frac{\frac{\frac{a.A' \xrightarrow{a} A' \quad A \triangleq a.A'}{A \xrightarrow{a} A'}}
 {{A \mid B \xrightarrow{a} A' \mid B}}a \not \in \{b, \bar{b}\}}{{(A \mid B) \setminus b \xrightarrow{a} (A' \mid B) \setminus b}}
 $$
 
-Split in separate peaces for improved readability:
+Split in separate peaces for better readability:
 $$\frac{a.A' \xrightarrow{a} A' \quad A \triangleq a.A'}{A \xrightarrow{a} A'}
 \quad
 \frac{A \xrightarrow{a} A'}{A \mid B \xrightarrow{a} A' \mid B}
@@ -174,7 +174,7 @@ $$\frac{a.A' \xrightarrow{a} A' \quad A \triangleq a.A'}{A \xrightarrow{a} A'}
 \frac{A \mid B \xrightarrow{a} A' \mid B \quad a \notin \{b, \bar{b}\}}{(A \mid B) \setminus b \xrightarrow{a} (A' \mid B) \setminus b}$$
 
 ##### Example 2:
-as $b$ is in $\{b, \bar{b}\}$, we will NOT see the transitions:
+since $b$ is in $\{b, \bar{b}\}$, we will NOT see the transitions:
 $$\frac{\frac{\frac{b.B' \xrightarrow{b} B' \quad B \triangleq b.B'}{B \xrightarrow{b} B'}}
 {{A \mid B \xrightarrow{b} A \mid B'}}b \in \{b, \bar{b}\}}{{(A \mid B) \setminus b}}$$
 This time I won't split it in separate pieces since I don't feel like doing it, just buy glasses.
\ No newline at end of file