X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Fcpx_lsubr.ma;h=ecc4cf82ede84bda9145c55de9196876985581fb;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hp=c2e3d8ad7d8c96600d1567bb23317b444b332e8c;hpb=f694e3336cbdabdeefd86f85d827edfd26bf3464;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_lsubr.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_lsubr.ma
index c2e3d8ad7..ecc4cf82e 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_lsubr.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_lsubr.ma
@@ -15,8 +15,16 @@
 include "basic_2/rt_transition/cpg_lsubr.ma".
 include "basic_2/rt_transition/cpx.ma".
 
-(* UNCOUNTED CONTEXT-SENSITIVE PARALLEL RT-TRANSITION FOR TERMS *************)
+(* UNBOUND CONTEXT-SENSITIVE PARALLEL RT-TRANSITION FOR TERMS ***************)
 
-lemma lsubr_cpx_trans: ∀h,G. lsub_trans … (cpx h G) lsubr.
+(* Properties with restricted refinement for local environments *************)
+
+lemma lsubr_cpx_trans (h) (G): lsub_trans … (cpx h G) lsubr.
 #h #G #L1 #T1 #T2 * /3 width=4 by lsubr_cpg_trans, ex_intro/
 qed-.
+
+lemma cpx_bind_unit (h) (G): ∀L,V1,V2. ❪G,L❫ ⊢ V1 ⬈[h] V2 →
+                             ∀J,T1,T2. ❪G,L.ⓤ[J]❫ ⊢ T1 ⬈[h] T2 →
+                             ∀p,I. ❪G,L❫ ⊢ ⓑ[p,I]V1.T1 ⬈[h] ⓑ[p,I]V2.T2.
+/4 width=4 by lsubr_cpx_trans, cpx_bind, lsubr_unit/ qed.
+