/2 width=2 by path_closed_structure_depth/
| lapply (in_comp_unwind2_path_term f … Ht1) -Ht2 -Ht1 -H0t1
<unwind2_path_d_dx <tr_pap_succ_nap <list_append_rcons_sn
- <unwind2_rmap_append_closed_nap //
+ <nap_unwind2_rmap_append_closed_Lq_dx_depth //
| lapply (unwind2_term_eq_repl_dx f … Ht2) -Ht2 #Ht2
@(subset_eq_trans … Ht2) -t2
@(subset_eq_trans … (unwind2_term_fsubst_ppc …))
<list_append_rcons_sn
@(stream_eq_trans … (tr_compose_uni_dx_pap …)) <tr_pap_succ_nap
@tr_compose_eq_repl
- [ <unwind2_rmap_append_closed_nap //
- | /2 width=1 by tls_succ_unwind2_rmap_append_L_closed_dx/
+ [ <nap_unwind2_rmap_append_closed_Lq_dx_depth //
+ | /2 width=2 by tls_succ_unwind2_rmap_append_closed_Lq_dx/
]
(* Note: crux of the proof ends *)
| //