Tips for golfing in Clojure What are your tips for code golfing using Clojure?

The aim of this question is to collect a list of techniques that are specific to Clojure and can be used in general code-golfing problems.
Use reader syntax for lambdas.
So use

#(+ % %2 %3)


instead of

(fn [x y z] (+ x y z))


You can also eliminate whitespace some of the time:

#(if (&lt; % 0) (- %) %)
#(if(&lt; % 0)(- %)%)