boolean xor

[Dieter Deyke]

Try

	((not a) != (not b))

aahz at panix.com (Aahz Maruch) writes:

> I need a boolean (not bit-wise) xor function.  I've got the following
> function, but my logic skills are rusty enough that I'm wondering if
> this is the "right" way to do it (I've validated that it produces the
> correct outputs, at least):
> 
> def xor(a,b):
>     return not ( (a and b) or (not (a or b)) )
> -- 
>                       --- Aahz (Copyright 2001 by aahz at pobox.com)
> 
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-- 
Dieter Deyke
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