fact: Definition exist_times {Σ_funcs : funcs_signature} {Σ_preds : preds_signature} {ff : falsity_flag} n (phi : form) := iter (fun psi => ∃ psi) n phi.
imports: Undecidability.Synthetic(Definitions DecidabilityFacts EnumerabilityFacts ListEnumerabilityFacts ReducibilityFacts) Undecidability(Shared.ListAutomation) Undecidability(Shared.Libs.PSL.Vectors.Vectors)