proposition: Lemma bounded_t_0_subst t ρ : bounded_t 0 t -> t`[ρ] = t.
proof: Proof. intros Hb. rewrite <-subst_term_var. eapply bounded_subst_t. 2: eassumption. lia. Qed.
imports: Undecidability.Synthetic(Definitions DecidabilityFacts EnumerabilityFacts ListEnumerabilityFacts ReducibilityFacts) Undecidability(Shared.ListAutomation Shared.Dec) Coq(Eqdep_dec PeanoNat) Coq.Vectors.Vector Undecidability.Shared.Libs.PSL.Vectors(Vectors) EqdepFacts