DEFINITION subst0_lift_ge_s()
TYPE =
∀t1:T
.∀t2:T
.∀u:T
.∀i:nat
.subst0 i u t1 t2
→∀d:nat
.le d i
→∀b:B.(subst0 (s (Bind b) i) u (lift (S O) d t1) (lift (S O) d t2))
BODY =
Show proof