I have a some what (I believe) easy question.  Could someone let me
know what I'm doing wrong?  A simplified version of what I'm trying to
do looks like this:

user=> (def foo (ref 0))
#'user/foo
user=> (defn square [x] (* x x))
#'user/square
user=> (defn square-ref [x] (dosync (alter foo square x)))
#'user/square-ref
user=> (square-ref 2)
java.lang.IllegalArgumentException: Wrong number of args passed to:
user$square (NO_SOURCE_FILE:0)
user=> (doc square)
-------------------------
user/square
([x])
  nil
nil
user=>

Thanks,
Brandon
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