[Scip] Elements of a subset

[Timo Berthold]

Hi Julio.

Have you tried playing around with the model yourself a little bit? I
guess if you build a minimum working example and have a look at the LP
files that ZIMPL generates, you will quickly get a feeling why this is or
is not what you are expecting.

Also, a 180-member mailing list might not be the right place for asking
questions about every single step of a model building process.

Cheers,
 Timo

> Nonetheless, as you can see in my previous email,
> I have made an example without the need to use "vif"

Which apparently does not work, so why not take the advice given to you?