(* *)
(**************************************************************************)
-(* GENERAL NOTATION USED BY THE FORMAL SYSTEM λδ ****************************)
+(* GROUND NOTATION **********************************************************)
notation "hvbox( ↑ term 70 T )"
- non associative with precedence 70
- for @{ 'UpArrow $T }.
+ non associative with precedence 70
+ for @{ 'UpArrow $T }.