Section DerivedRules.
Context {L: Language}
{minL: MinimumLanguage L}
{pL: PropositionalLanguage L}
{sepconL: SepconLanguage L}
{Gamma: Provable L}
{minAX: MinimumAxiomatization L Gamma}
{ipAX: IntuitionisticPropositionalLogic L Gamma}
{sepconAX: SepconAxiomatization L Gamma}.
Context {empL: EmpLanguage L}
{empAX: EmpAxiomatization L Gamma}.

Lemma derivable_emp {gcsGamma: GarbageCollectSeparationLogic L Gamma}:
forall (x y: expr), |-- emp.