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1 (**************************************************************************)
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11 (*        v         GNU General Public License Version 2                  *)
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14
15 include "basic_2/grammar/term_vector.ma".
16 include "basic_2/grammar/tsts.ma".
17
18 (* SAME TOP TERM STRUCTURE **************************************************)
19
20 (* Advanced inversion lemmas ************************************************)
21
22 (* Basic_1: was only: iso_flats_lref_bind_false iso_flats_flat_bind_false *)
23 lemma tsts_inv_bind_applv_simple: ∀p,I,Vs,V2,T1,T2. ⒶVs.T1 ≂ ⓑ{p,I}V2.T2 →
24                                   𝐒⦃T1⦄ → ⊥.
25 #p #I #Vs #V2 #T1 #T2 #H elim (tsts_inv_pair2 … H) -H
26 #V0 #T0 elim Vs -Vs normalize
27 [ #H destruct #H /2 width=5 by simple_inv_bind/
28 | #V #Vs #_ #H destruct
29 ]
30 qed-.