Deniz Dogan wrote:
>> instance Num Bool where
>> (+) False = id
>> (+) True = not
>>
>> (*) True True = True
>> (*) _ _ = False
>>
>
> Isn't "XOR" for booleans (/=)?
Oh right. And (*) would be (&&):
instance Num Bool where
(+) = (/=)
(*) = (&&)
-- ...
//Stephan
--
Früher hieß es ja: Ich denke, also bin ich.
Heute weiß man: Es geht auch so.
- Dieter Nuhr
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