(* Advanced inversion lemmas ************************************************)
(* Basic_1: was only: iso_flats_lref_bind_false iso_flats_flat_bind_false *)
-lemma tstc_inv_bind_appls_simple: ∀I,Vs,V2,T1,T2. ⒶVs.T1 ≃ ⓑ{I} V2. T2 →
- 𝐒[T1] → False.
-#I #Vs #V2 #T1 #T2 #H
+lemma tstc_inv_bind_appls_simple: ∀a,I,Vs,V2,T1,T2. ⒶVs.T1 ≃ ⓑ{a,I} V2. T2 →
+ 𝐒⦃T1⦄ → ⊥.
+#a #I #Vs #V2 #T1 #T2 #H
elim (tstc_inv_pair2 … H) -H #V0 #T0
elim Vs -Vs normalize
[ #H destruct #H