Finished Deriving from System.Object

csharp_fundamentals/8_oop.md

@@ -54,4 +54,15 @@ Syntax:
             Name = name;
         }
     }
-```
+```
+
+## Deriving fromm System.Object
+
+In .NET, everything is derived from `System.Object` class (even when you don't specify it when defining classes). We can view it by pressing F12.
+
+This class has methods:
+* `ToString`
+* `GetHashCode()`
+* ...
+
+All these methods will be inherited in its derived class (i.e. all classes)