(* GENERIC RELOCATION FOR TERMS *********************************************)
-(* Forward lemmas on weight for terms ***************************************)
+(* Forward lemmas with weight for terms *************************************)
(* Basic_2A1: includes: lift_fwd_tw *)
lemma lifts_fwd_tw: ∀T1,T2,f. ⬆*[f] T1 ≡ T2 → ♯{T1} = ♯{T2}.