(* NOTATION FOR THE FORMAL SYSTEM λδ ****************************************)
-notation "hvbox( ⬇ [ term 46 s , break term 46 d , break term 46 e ] break term 46 L1 ≡ break term 46 L2 )"
+notation "hvbox( ⬇ [ term 46 s , break term 46 l , break term 46 m ] break term 46 L1 ≡ break term 46 L2 )"
non associative with precedence 45
- for @{ 'RDrop $s $d $e $L1 $L2 }.
+ for @{ 'RDrop $s $l $m $L1 $L2 }.