diff --git a/Pasted image 20210530140116.png b/Pasted image 20210530140116.png
new file mode 100644
index 000000000..007fe10dd
Binary files /dev/null and b/Pasted image 20210530140116.png differ
diff --git a/category theory basics.md b/category theory basics.md
index 89c581d50..e3f59a74c 100644
--- a/category theory basics.md	
+++ b/category theory basics.md	
@@ -35,4 +35,8 @@ You can also compose physical components, of course.
 
 ![[Pasted image 20210530140048.png]]
 
-Aside: this e
\ No newline at end of file
+And physical processes.
+
+![[Pasted image 20210530140116.png]]
+
+The fundamental example is mathematical; composing 
\ No newline at end of file