On 22/10/2010 02:56 AM, Darren New wrote:
> http://en.wikipedia.org/wiki/Abstract_data_type
>
> http://en.wikipedia.org/wiki/Algebraic_data_type
>
> ADT is abstract data type, which is *not* "an opaque object" in the
> object-oriented programming sense.
>
> "Algebraic Data Type" is not the abstract version of "a class" either.

In other words, abstract data type /= algebraic data type, just like 
I've been saying all along. :-P

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