Re: On Formal IS-A definition
From: Reinier Post <rp_at_raampje.lan>
Date: 29 Apr 2010 22:31:58 GMT
Message-ID: <4bda08dd$0$14133$703f8584_at_textnews.kpn.nl>
Date: 29 Apr 2010 22:31:58 GMT
Message-ID: <4bda08dd$0$14133$703f8584_at_textnews.kpn.nl>
Tegiri Nenashi wrote:
[...]
>Animals = [Name]
> bear
> sheep
> wolf
>;
>
>Carnivores2 = [Name Prey]
> bear deer
> wolf sheep
> wolf deer
>;
>
>I suggest that we still have "Carnivores2" IS-A "Animals". Do you
>agree?
No. I've never seen this. The naming of Carnivores2 is strange: it should name what each tuple stands for, but a carnivore isn't always represented by a single tuple.
-- ReinierReceived on Fri Apr 30 2010 - 00:31:58 CEST