proposition: Lemma numeral_htrans n : htrans (numeral n).
proof: Proof. Proof using M_FST VIEQ. split; try apply numeral_trans. intros y [k ->] % numeral_numeral. apply numeral_trans. Qed.
imports: Undecidability.FOL(Syntax.Facts Semantics.Tarski.FullFacts FST) Undecidability.FOL(Sets.FST) Undecidability.FOL.TRAKHTENBROT(hfs) Undecidability.Shared.Libs.DLW.Utils(finite) Undecidability(Shared.ListAutomation) Coq(Lia)