fact: Definition fractran_eval_old P n m := fractran_compute P n m /\ fractran_stop P m.
imports: List Arith Undecidability.Shared.Libs(utils_tac utils_list sums rel_iter gcd pos vec) Undecidability.FRACTRAN(FRACTRAN fractran_utils prime_seq) Undecidability.H10.Dio(dio_logic dio_bounded dio_rt_closure dio_single dio_expo)