non associative with precedence 45
for @{ 'BinaryArity $h $L $T $A }.
-notation "hvbox( h â\8a¢ break term 46 L1 ÷ â\8a\91 break term 46 L2 )"
+notation "hvbox( h â\8a¢ break term 46 L1 ÷ â«\83 break term 46 L2 )"
non associative with precedence 45
for @{ 'LRSubEqB $h $L1 $L2 }.