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 *)
13 (**************************************************************************)
15 include "basic_2/unfold/sstas_lift.ma".
16 include "basic_2/computation/cprs_lift.ma".
17 include "basic_2/computation/cpds.ma".
19 (* DECOMPOSED EXTENDED PARALLEL COMPUTATION ON TERMS ************************)
21 (* Relocation properties ****************************************************)
23 lemma cpds_lift: ∀h,g,G. l_liftable (cpds h g G).
24 #h #g #G #K #T1 #T2 * #T #HT1 #HT2 #L #d #e
25 elim (lift_total T d e)
26 /3 width=11 by cprs_lift, sstas_lift, ex2_intro/
29 lemma cpds_inv_lift1: ∀h,g,G. l_deliftable_sn (cpds h g G).
30 #h #g #G #L #U1 #U2 * #U #HU1 #HU2 #K #d #e #HLK #T1 #HTU1
31 elim (sstas_inv_lift1 … HU1 … HLK … HTU1) -U1 #T #HT1 #HTU
32 elim (cprs_inv_lift1 … HU2 … HLK … HTU) -U -L /3 width=5/