1 (**************************************************************************)
4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
8 (* ||A|| http://helm.cs.unibo.it *)
10 (* \ / This file is distributed under the terms of the *)
11 (* v GNU General Public License Version 2 *)
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15 (* This file was automatically generated: do not edit *********************)
17 include "basic_1A/nf2/props.ma".
19 include "basic_1A/drop1/fwd.ma".
22 \forall (e: C).(\forall (hds: PList).(\forall (c: C).(\forall (t: T).((drop1
23 hds c e) \to ((nf2 e t) \to (nf2 c (lift1 hds t)))))))
25 \lambda (e: C).(\lambda (hds: PList).(PList_ind (\lambda (p: PList).(\forall
26 (c: C).(\forall (t: T).((drop1 p c e) \to ((nf2 e t) \to (nf2 c (lift1 p
27 t))))))) (\lambda (c: C).(\lambda (t: T).(\lambda (H: (drop1 PNil c
28 e)).(\lambda (H0: (nf2 e t)).(let H_y \def (drop1_gen_pnil c e H) in
29 (eq_ind_r C e (\lambda (c0: C).(nf2 c0 t)) H0 c H_y)))))) (\lambda (n:
30 nat).(\lambda (n0: nat).(\lambda (p: PList).(\lambda (H: ((\forall (c:
31 C).(\forall (t: T).((drop1 p c e) \to ((nf2 e t) \to (nf2 c (lift1 p
32 t)))))))).(\lambda (c: C).(\lambda (t: T).(\lambda (H0: (drop1 (PCons n n0 p)
33 c e)).(\lambda (H1: (nf2 e t)).(let H_x \def (drop1_gen_pcons c e p n n0 H0)
34 in (let H2 \def H_x in (ex2_ind C (\lambda (c2: C).(drop n n0 c c2)) (\lambda
35 (c2: C).(drop1 p c2 e)) (nf2 c (lift n n0 (lift1 p t))) (\lambda (x:
36 C).(\lambda (H3: (drop n n0 c x)).(\lambda (H4: (drop1 p x e)).(nf2_lift x
37 (lift1 p t) (H x t H4 H1) c n n0 H3)))) H2))))))))))) hds)).