update in staic_2 and basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_transition / cpx_req.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_req.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_req.ma
index f74d42babe9135a0bcb7465c5db946f2c9cdbc27..a982ed783d1d0bb462e468e3f8b6d74af8554bcb 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_req.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_req.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "static_2/static/req_length.ma".
 include "static_2/static/req_drops.ma".
 include "basic_2/rt_transition/rpx_fsle.ma".
 
@@ -20,7 +21,7 @@ include "basic_2/rt_transition/rpx_fsle.ma".
 (* Properties with syntactic equivalence for lenvs on referred entries ******)
 
 (* Basic_2A1: was: lleq_cpx_trans *)
-lemma req_cpx_trans (G): req_transitive (cpx G).
+lemma req_cpx_trans (G): R_transitive_req (cpx G).
 #G #L2 #T1 #T2 #H @(cpx_ind … H) -G -L2 -T1 -T2 /2 width=2 by cpx_qu/
 [ #I #G #K2 #V1 #V2 #W2 #_ #IH #HVW2 #L1 #H
   elim (req_inv_zero_pair_dx … H) -H #K1 #HK12 #H destruct
@@ -49,6 +50,9 @@ lemma req_cpx_trans (G): req_transitive (cpx G).
 ]
 qed-.
 
+lemma cpx_req_conf (G): R_confluent1_rex (cpx G) ceq.
+/3 width=3 by req_cpx_trans, req_sym/ qed-.
+
 (* Basic_2A1: was: cpx_lleq_conf_sn *)
 lemma cpx_req_conf_sn (G): s_r_confluent1 … (cpx G) req.
-/2 width=5 by cpx_rex_conf/ qed-.
+/2 width=5 by cpx_rex_conf_sn/ qed-.