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+# Constants
+
+Limbo does not have enum types, but does have the `con` keyword to indicate a constant value. 
+
+## Source
+
+### const.b:13,14
+
+	n: con 7;
+	Red, Green, Blue: con iota;
+
+The variable `n` is an integer constant with a value of 7. 
+
+The variables `Red`, `Green`, and `Blue` are integer constants with values 0, 1, and 2, respectively. 
+
+By default, the `iota` operator initializes variables on the left side with sequential values from 0 to n. Where n is the number of variables. The `iota` operator is only valid in expressions involving `con`. 
+
+Note: these variables are bound within the scope of this module's file. 
+
+### const.b:19
+
+	s: con "Limbo";
+
+The variable `s` is a string constant which is bound within the scope of the `init()` function. 
+
+## Demo
+
+	; limbo const.b
+	; const
+	7
+	Red: 0 Green: 1 Blue: 2
+	Limbo
+	; 
+
+## Exercises
+
+- Try to declare constants of other types, does `con` allow you to do this?
+- Change the `iota` statement such that the values of Red, Green, Blue are not increments of 1 and do not start at 0.