(* NOTATION FOR THE FORMAL SYSTEM λδ ****************************************)
-notation "hvbox( L1 ≋ⓧ* [ break term 46 n1, break term 46 n2 ] break term 46 L2 )"
+notation "hvbox( L1 ≋ⓧ*[ break term 46 n1, break term 46 n2 ] break term 46 L2 )"
non associative with precedence 45
for @{ 'VoidStarEq $L1 $n1 $n2 $L2 }.