(* NOTATION FOR THE FORMAL SYSTEM λδ ****************************************)
-notation "hvbox( ≥ [ term 46 h ] 𝐒 ⦃ break term 46 G, break term 46 L, break term 46 T ⦄ )"
+notation "hvbox( ≥[ term 46 h ] 𝐒❪ break term 46 G, break term 46 L, break term 46 T ❫ )"
non associative with precedence 45
for @{ 'PRedSubTyStrong $h $G $L $T }.