Tacitly:

  lh=. (`(<'~')) (@.(((<1 2);0);2))

   (u`v) lh Y
((u Y) v Y)
   X (u`v) lh Y
((u X) v Y)





________________________________
From: Viktor Cerovski <[email protected]>
To: [email protected]
Sent: Fri, October 30, 2009 4:56:43 PM
Subject: Re: [Jprogramming] left-leaning hook




Raul Miller-4 wrote:
> 
> [...]
>    lefthook=:2 :'u...@[ v ]'
> [...]
> 

  lefthook1=:2 :'(v~ u)~'

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