+notation "hvbox( ⦃ L1 ⦄ ➡ break ⦃ L2 ⦄ )"
+ non associative with precedence 45
+ for @{ 'FocalizedPRed $L1 $L2 }.
+
+notation "hvbox( ⦃ L1, break T1 ⦄ ➡ break ⦃ L2 , break T2 ⦄ )"
+ non associative with precedence 45
+ for @{ 'FocalizedPRed $L1 $T1 $L2 $T2 }.
+
+notation "hvbox( L ⊢ break ⦃ L1, break T1 ⦄ ➡ break ⦃ L2 , break T2 ⦄ )"
+ non associative with precedence 45
+ for @{ 'FocalizedPRed $L $L1 $T1 $L2 $T2 }.
+
+notation "hvbox( ⦃ L1 ⦄ ➡ ➡ break ⦃ L2 ⦄ )"