corrected wrong type

code_table.tex

@@ -201,7 +201,7 @@ let z = fun (((Empty -> Any) -> Empty -> Any ) ->
           f ( fun (Empty -> Any) v -> ( x x v ))
         in delta delta    
     \end{lstlisting} &\vfill
-    $(\Empty\to\Any)\to\Empty\to\Any$
+    $((\Empty\to\Any)\to\Empty\to\Any)\to\Empty\to\Any$
     \\\hline
 
 \end{tabular}