Context {s'L: SeparationEmpLanguage L}
{ueSM: UpwardsSemantics.EmpSemantics L MD M SM}.

(* Specifications: *)
Lemma sound_sepcon_emp {USA': UnitalSeparationAlgebra' (Kworlds M)}:
forall x: expr,
forall m, KRIPKE: M, m |= x * emp <--> x.