(* NOTATION FOR THE FORMAL SYSTEM λδ ****************************************)
-notation "hvbox( G ⊢ break term 46 L1 ⫃ ⁝ break term 46 L2 )"
+notation "hvbox( G ⊢ break term 46 L1 ⫃⁝ break term 46 L2 )"
non associative with precedence 45
for @{ 'LRSubEqA $G $L1 $L2 }.