let id = fresh_id () in
let l2' = CicNotationUtil.strip_attributes l2 in
Hashtbl.add level1_patterns21 id (precedence, associativity, l1);
let id = fresh_id () in
let l2' = CicNotationUtil.strip_attributes l2 in
Hashtbl.add level1_patterns21 id (precedence, associativity, l1);