I'm a clojure newbie. Why does the compiler complain about being unable to resolve cube-root-recur on line 17? thanks
1 (def cube-root
2 (fn [n]
3 (let
4 [abs
5 (fn [n]
6 (if (> n 0) n (- 0 n)))
7 good-enough?
8 (fn [guess]
9 (< (abs (- (* guess guess guess) n)) 0.0001))
10 improve-guess
11 (fn [guess]
12 (/ (+ (/ n (* guess guess)) (* 2 guess)) 3))
13 cube-root-recur
14 (fn [guess]
15 (cond
16 (good-enough? guess) guess
17 :else (cube-root-recur (improve-guess guess))))]
18 (cube-root-recur 1))))
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