Differences in pattern matching syntax?

Bulat Ziganshin bulat.ziganshin at gmail.com
Fri Jan 16 11:23:48 EST 2009

Hello Simon,

Friday, January 16, 2009, 7:07:09 PM, you wrote:

> Sadly you have not defined it. You just say

>    instance Eq RuleType

this is very common error. it would be great to find some way to deal
with it (for predefined classes at very least...)

Best regards,
 Bulat                            mailto:Bulat.Ziganshin at gmail.com

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