On 12 oct, 03:56, Stuart Halloway <stuart.hallo...@gmail.com> wrote:

I've tried your definition

> (def primes
>   (concat
>    [2]
>    (let [primes-from
>          (fn primes-from
>            [n]
>            (if (some #(zero? (rem n %))
>                      (take-while #(<= (* % %) n) primes))
>              (recur (+ n 2))
>              (lazy-seq (cons n (primes-from (+ n 2))))))]
>      (primes-from 2))))

using clojure 1.2 and I've got:

user=> java.lang.IllegalStateException: Var user/primes is unbound.
(NO_SOURCE_FILE:27)

Any idea of what is going on?

Thanks.

JM

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