From: Jeff Polakow <jeff.polakow@db.com>
To: christophedehlinger@gmail.com
Cc: "O'Caml Mailing List" <caml-list@inria.fr>,
caml-list-bounces@yquem.inria.fr
Subject: Re: [Caml-list] What is "principal typing"?
Date: Thu, 21 Dec 2006 16:07:06 -0500 [thread overview]
Message-ID: <OF3634EA37.4D9BE122-ON8525724B.0073A7FE-8525724B.007401F1@db.com> (raw)
In-Reply-To: <f24432a00612202327u53356314hd9a5a38f70c72a47@mail.gmail.com>
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Hello,
> According to a 2005 paper by Camarao and Figueiredo (found at
> http://www.dcc.ufmg.br/~camarao/ml-has-pt.pdf ), there is a variation
> of the usual Damas-Milner type system for core-ML that types the same
> terms and also has principal typings.
>
I hadn't heard of this work before. I'll try to take a look at it
sometime.
> So the language ML does have principal typings, in the sense that it
> has a useful type system with principal typings, but afaik no ML
> implementation uses a such a type system.
>
Yes, I should have been more careful with my assertion. The paper I
referenced actually shows that Hindley/Milner has no principal typings.
-Jeff
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prev parent reply other threads:[~2006-12-21 21:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-20 21:53 Tom
2006-12-21 4:10 ` [Caml-list] " Jeff Polakow
2006-12-21 6:42 ` Tom
2006-12-21 21:02 ` Jeff Polakow
2006-12-21 7:27 ` Christophe Dehlinger
2006-12-21 21:07 ` Jeff Polakow [this message]
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