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From: =?UTF-8?Q?Milan_Stanojevi=C4=87?= <milanst@gmail.com>
Date: Thu, 19 Mar 2015 12:31:32 -0400
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To: Jeremy Yallop <yallop@gmail.com>
Cc: =?UTF-8?Q?Daniel_B=C3=BCnzli?= <daniel.buenzli@erratique.ch>, 
	Caml-list <caml-list@inria.fr>
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Subject: Re: [Caml-list] GADT existential escape

> This needs a locally-abstract type ("type a. ") to allow type
> refinement when you match against the GADT

Yup, sorry, I just wrote the code without checking it.