diff --git a/spf.lark b/spf.lark
index 7ddb12e..c6f5b84 100644
--- a/spf.lark
+++ b/spf.lark
@@ -7,33 +7,28 @@ instruction: type declaration TERMINAL
 		   | ADD_KW expression "dans" VARIABLE TERMINAL
 
 expression: expressionleft // TODO: priorité des op certainement fausse
-		  | gen_op
-		  | bool_op
-		  | int_op
-		  | list_op
+          | op
 
 expressionleft: literal 
               | list
               | range
 			  | VARIABLE
 
-gen_op: expressionleft SAME_OP expression
-	  | expressionleft DIFF_OP expression
-
-bool_op: expressionleft AND_OP expression
-       | expressionleft OR_OP expression
-	   | NOT_OP expression
-
-int_op: expressionleft LT_OP expression
-      | expressionleft LE_OP expression
-      | expressionleft GT_OP expression
-      | expressionleft GE_OP expression
-	  | expressionleft operator expression
-	  | NEG_OP expression
-
-list_op: expressionleft CONC_OP expression
-       | expressionleft ("[" expression "]" | range)
-	   | SIZE_OP expression
+op: expressionleft SAME_OP expression
+  | expressionleft DIFF_OP expression
+  | expressionleft AND_OP expression
+  | expressionleft OR_OP expression
+  | NOT_OP expression
+  | expressionleft LT_OP expression
+  | expressionleft LE_OP expression
+  | expressionleft GT_OP expression
+  | expressionleft GE_OP expression
+  | expressionleft operator expression
+  | NEG_OP expression
+  | expressionleft CONC_OP expression
+  | expressionleft ("[" expression "]" | range)
+  | SIZE_OP expression
+  | "(" expression ")"
 
 type: BOOL_TYPE
 	| INT_TYPE