Ah cool, thanks for posting your solution!

On Friday, January 24, 2014 3:29:49 PM UTC-5, Tassilo Horn wrote:
>
> Jarrod Swart <jcs...@gmail.com <javascript:>> writes: 
>
> > The reason you can't get this to work is that r/map returns a 
> <reducible> 
> > not a <coll> for reduce to operate on. 
>
> Ah, indeed.  I couldn't see the forest for the trees. 
>
> > I'm not sure of a solution because I'm not familiar with 
> > core.reducers. 
>
> This works: 
>
>   (reduce set/intersection (r/foldcat (r/map set [[1 2] [3 1] [1 3]]))) 
>
> Bye, 
> Tassilo 
>

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