Ah ok. So I need to transform a vector and/or a list into a set first.

Thanks.

Am Montag, 3. September 2012 13:05:52 UTC+2 schrieb Ambrose 
Bonnaire-Sergeant:
>
> 'contains?' tests if a key is in a collection.
>
> Vector is an associative data structure, with keys being indexes.
> A vector of length 3 has the key 2, but not key 3.
>
> Thanks,
> Ambrose
>
> On Mon, Sep 3, 2012 at 7:03 PM, Goldritter 
> <marcus.goldr...@googlemail.com<javascript:>
> > wrote:
>
>> I use Clojure 1.4.0 and wanted to use 'contains?' on a vector and get 
>> following results:
>>
>> => (contains? [1 2 3] 3)
>> false
>> => (contains? [1 2 3] 2)
>> true
>>
>> As it seems 'contains?' does not check for the last entry in the vector.
>>
>> And an other question.
>> Why does contains? returns everytime 'false' when used on a list?
>> => (contains? (list 1 2 3) 1)
>> false
>> => (contains? (list 1 2 3) 2)
>> false
>> => (contains? (list 1 2 3) 3)
>> false
>>
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