[Haskell-cafe] Hyper-recursion?

[Sergiu Ivanov]

Thus quoth  Lawrence Bottorff  at 01:11 on Wed, Jan 18 2017:
>
> I guess I'm using a looser definition of recursion, something not
> exactly "self-referential." For example, I'm on the phone with
> someone, and then I accept a call-waiting call. You can go into
> multiple depths of call waiting, then wind your way back out as you
> hang up on each -- all the way back to the original caller.
[...]
> This could go on and on, new polynomials substituted into one of the
> variables of the previous.

This sounds a lot like recursive (inductive/coinductive) data
structures.

-- 
Sergiu
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