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[Caml-list] Is a Cow an Animal?
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Date: -- (:)
From: Pixel <pixel@m...>
Subject: Re: [Caml-list] Is a Cow an Animal?
james woodyatt <jhw@wetware.com> writes:

> On Thursday, April 18, 2002, at 03:44 PM, Pixel wrote:
> >
> > well, i don't really understand the """type 'diet energy = int""" stuff.

[...]

> It looks like the 'a energy type is not actually abstract in your trial above.
> It has to be abstract or the technique doesn't work.

/me is bad (bis)

and worse, it seems I'm still missing something since subsumption is still not
there.

What I now understand is that it allows to have 
  [ `E_rabbit | `E_human] T.energy
a subtype of 
  [ `E_rabbit ] T.energy
which is needed to have the food tied to its eaters instead instead of
having the animal tied to its accepted_food.


thanks!
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