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/rt_transition/cpr_cpr.ma".
16 include "basic_2/rt_computation/cprs_ctc.ma".
18 (* CONTEXT-SENSITIVE PARALLEL R-COMPUTATION FOR TERMS ***********************)
20 (* Advanced properties with context-sensitive r-transition for terms ********)
22 (* Basic_1: was: pr3_strip *)
23 (* Basic_1: includes: pr1_strip *)
24 lemma cprs_strip (h) (G) (L): confluent2 … (cpms h G L 0) (cpm h G L 0).
25 #h #G #L #T0 #T1 #HT01 #T2 #HT02
26 elim (TC_strip1 … T0 T1 … HT02) -HT02
27 [ /3 width=3 by cprs_CTC, ex2_intro/ | skip
28 | /2 width=1 by cprs_inv_CTC/
29 | /2 width=3 by cpr_conf/