begin
let dbd = MatitaDb.instance () in
let similar = MetadataQuery.match_term ~dbd ty in
+ let similar_len = List.length similar in
+ if similar_len> 30 then
+ (MatitaLog.message
+ ("Duplicate check will compare your theorem with " ^
+ string_of_int similar_len ^
+ " theorems, this may take a while."));
let convertible =
List.filter (
fun u ->