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+(* Are recursively non-uniform params correctly treated? *)
+Inductive list (A:nat -> Type) n := cons : A n -> list A (S n) -> list A n.
+Inductive term n := app (l : list term n).
+Definition term_list :=
+ fix term_size n (t : term n) (acc : nat) {struct t} : nat :=
+ match t with
+ | app l =>
+ (fix term_list_size n (l : list term n) (acc : nat) {struct l} : nat :=
+ match l with
+ | cons t q => term_list_size (S n) q (term_size n t acc)
+ end) n l (S acc)
+ end.