DEFINITION lift_gen_lref()
TYPE =
∀t:T
.∀d:nat
.∀h:nat
.∀i:nat
.eq T (TLRef i) (lift h d t)
→(or
land (lt i d) (eq T t (TLRef i))
land (le (plus d h) i) (eq T t (TLRef (minus i h))))
BODY =
Show proof