add_composites:bool ->
RefinementTool.kit -> UriManager.uri -> int (* arity *) ->
int (* saturations *) -> string (* baseuri *) ->
- (UriManager.uri * int * int) list (* URI, arity, saturations *)
+ (UriManager.uri * int * int * int) list (* URI, arity, saturations, cpos *)
(* inverse of add_coercion, removes both the eventually created composite *)
(* coercions and the information that [uri] and the composites are coercion *)