I&#39;m not getting it.&nbsp; Are you thinking that Bool itself &quot;is derived form these classes&quot;, rather than those four instances for Bool?&nbsp; - Conal<br><br><div class="gmail_quote">On Mon, Apr 7, 2008 at 9:12 AM, PR Stanley &lt;<a href="mailto:prstanley@ntlworld.com">prstanley@ntlworld.com</a>&gt; wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi<br>
data Bool = False | True<br>
 &nbsp;deriving (Eq, Or, Show, Read)<br>
<br>
Bool is an instance of Eq, Ord, Show and Read. It is derived form these classes. If that is the meaning of the keyword deriving then wouldn&#39;t a different keyword such as from or derivative or even derivation be closer to the semantics of the concept?<br>

Discuss :-)<br>
<br>
Cheers,<br>
Paul<br>
<br>
_______________________________________________<br>
Haskell-Cafe mailing list<br>
<a href="mailto:Haskell-Cafe@haskell.org" target="_blank">Haskell-Cafe@haskell.org</a><br>
<a href="http://www.haskell.org/mailman/listinfo/haskell-cafe" target="_blank">http://www.haskell.org/mailman/listinfo/haskell-cafe</a><br>
</blockquote></div><br>