Re: avoiding duplicate messages with multiple lists

On Thu, 5 Oct 2006, Miquel Cabanas wrote:

> On Thu, 2006-10-05 at 14:24 +0200, Miquel Cabanas wrote:
> > On Wed, 2006-10-04 at 17:04 -0700, Jamie Zawinski wrote: 
> >
> > the nightmare way:
> > 
> > create several lists, called, for instance, "only-in-A", "only-in-B",
> > "only-in-C", "in-A-and-B", "in-A-and-C", "in-B-and-C" and
> > "in-A-and-B-and-C". I think the names are self-explanatory.
> > 
> > Then, subscribe "only-in-A", "in-A-and-B" and "in-A-and-B-and-C" to
> > "listA", and all B-related sublists to "listB", and so on.
> 
> sorry, I've just realized that this will not fix the problem, actually,
> I think it will make it worse.

It would work if list-A is included in list-B, list-B is included in list-C
and the following list are created:

list-A
list-B-not-in-A
list-C-not-in-A-and-not-in-B

(The names are also self-explanatory :-)