proposition: Lemma FST_standard : standard Acz_interp.
proof: Proof. intros s [n Hn]. cbn in Hn. exists n. apply Hn. Qed.
imports: Undecidability.FOL(Syntax.Facts Semantics.Tarski.FullFacts Deduction.FullNDFacts ZF FST) Undecidability.FOL.Sets(Models.Aczel Models.ZF_model ZF minZF FST) Undecidability.FOL.Reductions(PCPb_to_ZF PCPb_to_ZFeq PCPb_to_minZF PCPb_to_minZFeq PCPb_to_ZFD) Lia Undecidability.PCP(PCP) Undecidability(Shared.ListAutomation)