>> What is "gensym", and why does Lisp have it?
> 
> It creates a guaranteed-unique variable name that you can use as a local 
> in a macro or a dynamically-scoped function.   What did you *think* it 
> might be for, given the bit I quoted and the name of the LISP function?

Mmm, OK.

This isn't hard to do in Haskell - it's just that you have to remember 
to do it! (And more subtly, do it at the correct moment.)

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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