Boolean function on variable-length lists

[Libra]

On Wednesday, September 12, 2012 3:11:42 PM UTC+2, Steven D'Aprano wrote:
> On Wed, 12 Sep 2012 05:48:09 -0700, Libra wrote:

> > I need to implement a function that returns 1 only if all the values in
> > a list satisfy given constraints (at least one constraint for each
> > element in the list), and zero otherwise.
> 
> What are the restrictions on the constraints themselves?
> Could they be arbitrarily complicated?
> "Item 2 must be an even number divisible by 17 and 39 with at least eight 
> digits but no greater than four million, unless today is Tuesday, in 
> which case it must be equal to six exactly."

Generally the constraints are quite simple, like the one in my example. But I can also have 2 or more constraints for each value:
L[0] >= 1
L[0] <= 5

To complicate a little, what about constraints like:
L[0] + L[2] >= 3

Thanks

> -- 
> 
> Steven