⦃G, L1⦄ ⊢ ➡[h, ②{I}V.T] L2 → ⦃G, L1⦄ ⊢ ➡[h, V] L2.
/2 width=3 by lfxs_fwd_pair_sn/ qed-.
-(* Basic_2A1: removed theorems 14:
+(* Basic_2A1: removed theorems 16:
lpr_inv_atom1 lpr_inv_pair1 lpr_inv_atom2 lpr_inv_pair2
lpr_refl lpr_pair
lpr_fwd_length lpr_lpx
lpr_drop_conf drop_lpr_trans lpr_drop_trans_O1
cpr_conf_lpr lpr_cpr_conf_dx lpr_cpr_conf_sn
+ fqu_lpr_trans fquq_lpr_trans
*)
(* Basic_1: removed theorems 7:
wcpr0_gen_sort wcpr0_gen_head