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--- blog:2023-03-10 [2023/03/11 06:45] – [Example] pzhou
+++ blog:2023-03-10 [2023/06/25 15:53] (current) – external edit 127.0.0.1
@@ Line 80: / Line 80: @@
 So, don't worry about the words if you don't know what it means. Let's just see, if you can understand the comodule.
-So, we understand $\dcal$, which is just  $Vect \times Vect$ .
+So, we understand $\dcal$, which is just  $Vect \times Vect$ . And the comodules  $\Omega$  is doing what? It is
+ $\Omega(V_1 ,  V_2) = (V_1 + V_2[1], V_2 + V_1)$
+so it is clear, what is the co-unit map. And what is $\Om (V_1 ,  V_2) \to \Om \Om (V_1 ,  V_2)$? First, what is $