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@@ -15,4 +15,12 @@ Category theory is about [[composing stuff]] together.
 
 ![[Pasted image 20210530135718.png]]
 
-Example: composing [[journeys]].
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+Example: composing [[journeys]].
+
+![[Pasted image 20210530135755.png]]
+
+Example: composing processes. Mathematical functions, algorithms, physical processes.
+
+![[Pasted image 20210530135825.png]]
+
+Notation: 
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