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+# Function References
+
+Limbo supports references to functions, similar to closures, but more similar to function pointers. 
+
+The example in this section is a derivative of the function reference summary in the [Limbo Addendum](http://www.vitanuova.com/inferno/papers/addendum.pdf). 
+
+## Source
+
+### 
+
+
+
+## Demo
+
+
+
+## Exercises
+
+- Change the value of `c` to 1, what happens?