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-NAME
-	addition - add things together
-
-SYNTAX
-	a + b
-	or
-	mixed sum(mixed ...)
-
-DESCRIPTION
-	For ints and floats this operator simply adds the two operators
-	together. For strings and arrays, concatenation is done. For lists
-	and mapping this creates a new list with all indices and data as
-	in a and b. Note that this can cause a list or mapping to contain
-	several equal indices. Also, when adding a string to an int or float
-	the number is converted to a printable string first.
-
-EXAMPLES
-	"a"+10  	returns "a10"
-	10+20   	returns 30
-	({1})+({2})	returns ({1,2})
-	(<1>)+(<1>)	returns (<1,1>)
-
-SEE ALSO
-	subtraction, efun/sum, multiplication