Re: [exim] Negation list - NOR statement

On 2011-08-24 at 22:51 -0400, Frank DeChellis wrote:
> Hosts = !+host_list1 : !+host_list2
>
> If I understand correctly again, I am setting up a resultant NAND function
> by negating the two lists that are ³OR² together. Boolean Algebra 201.
>
> How would I create a ³NOR² function between the two lists , so I can say
> that the host name is neither on list 1 nor list 2? I tried various
> syntaxes with no luck. I guess I would have to bracket the two lists
> together and negate the whole thing ... But how?

hostlist combined = +host_list1 : +host_list2

hosts = !+combined