explicit checks stable_finished_theory/stable_command allow parallel asynchronous command transactions;
tuned;
(* Classical Higher-order Logic -- batteries included *)
use_thys ["Library", "List_Prefix", "List_lexord", "Sublist_Order",
"Product_Lattice",
"Code_Char_chr", "Code_Char_ord", "Code_Integer", "Efficient_Nat"(*, "Code_Prolog"*),
"Code_Real_Approx_By_Float", "Target_Numeral"];