(* NOTATION FOR THE FORMAL SYSTEM λδ ****************************************)
-notation "hvbox( L1 ⦻ * break [ term 46 R1 , break term 46 R2 , break term 46 f ] break term 46 L2 )"
+notation "hvbox( L1 ⪤ * [ break term 46 R1, break term 46 R2, break term 46 f ] break term 46 L2 )"
non associative with precedence 45
for @{ 'RelationStar $R1 $R2 $f $L1 $L2 }.