exception AlreadyDefined of UriManager.uri
+val set_object_declaration_hook : (UriManager.uri -> Cic.obj -> unit) -> unit
+
(* this is a pointer to the function which builds the inversion principle *)
val build_inversion_principle: (UriManager.uri-> Cic.obj -> (UriManager.uri * Cic.obj) list) ref
(* coercions and the information that [uri] and the composites are coercion *)
val remove_coercion: UriManager.uri -> unit
-(* mh... *)
+(* this is used when resetting, but the more gracefull push/pop can be used to
+ * suspend/resume an execution *)
val remove_all_coercions: unit -> unit
-
+val push: unit -> unit
+val pop: unit -> unit