Re: [Help-glpk] Literal empty set of a multi-dimensional set

[Andrew Makhorin]

> I've got the following problem: there's a set B declared as follow
> B within A cross C
> and it may be empty. 

> Is it possible to write an initialization statement (default, :=) with
> literal empty set for B? Sort of default {}
> If not, how should I declare B?

set B, within A cross C, := {} cross {};