(* GROUND NOTATION **********************************************************)
-notation "hvbox( @â\9dª term 46 T1 , break term 46 f â\9d« ≘ break term 46 T2 )"
+notation "hvbox( @â\9d¨ term 46 T1 , break term 46 f â\9d© ≘ break term 46 T2 )"
non associative with precedence 45
for @{ 'RAt $T1 $f $T2 }.