Hi all,<div><br></div><div>I have been searching for examples of Haskell &quot;real scenarios&quot; that employ mutually recursive datatype definitions.</div><div>Does anyone know some interesting libraries or structures that I could play with?</div>

<div><br></div><div>Thanks,</div><div>hugo</div><div><br>-- <br><a href="http://www.di.uminho.pt/~hpacheco" target="_blank">www.di.uminho.pt/~hpacheco</a><br>
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