(* Advanced inversion lemmas ************************************************)
(* Basic_1: was only: iso_flats_lref_bind_false iso_flats_flat_bind_false *)
-lemma tsts_inv_bind_applv_simple: ∀a,I,Vs,V2,T1,T2. ⒶVs.T1 ≂ ⓑ{a,I} V2. T2 →
+lemma tsts_inv_bind_applv_simple: ∀p,I,Vs,V2,T1,T2. ⒶVs.T1 ≂ ⓑ{p,I}V2.T2 →
𝐒⦃T1⦄ → ⊥.
-#a #I #Vs #V2 #T1 #T2 #H
-elim (tsts_inv_pair2 … H) -H #V0 #T0
-elim Vs -Vs normalize
+#p #I #Vs #V2 #T1 #T2 #H elim (tsts_inv_pair2 … H) -H
+#V0 #T0 elim Vs -Vs normalize
[ #H destruct #H /2 width=5 by simple_inv_bind/
| #V #Vs #_ #H destruct
]