proposition: Fact finite_t_bool : finite_t bool.
proof: Proof. exists (true::false::nil); intros []; simpl; auto. Qed.
imports: List Arith Lia Eqdep_dec Bool Undecidability.Shared.Libs.DLW.Utils(utils_tac utils_list utils_nat) Undecidability.Shared.Libs.DLW.Vec(pos vec)