X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Fcnx_basic.ma;h=1532cfcf67a0d169dbcbebef6b3c341faf1cde7b;hp=b99b444cc7e261865883e12099342fdbaeca0293;hb=3c7b4071a9ac096b02334c1d47468776b948e2de;hpb=2f6f2b7c01d47d23f61dd48d767bcb37aecdcfea

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cnx_basic.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cnx_basic.ma
index b99b444cc..1532cfcf6 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cnx_basic.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cnx_basic.ma
@@ -16,14 +16,14 @@ include "static_2/relocation/lifts_teqx.ma".
 include "basic_2/rt_transition/cpx_drops_basic.ma".
 include "basic_2/rt_transition/cnx.ma".
 
-(* NORMAL TERMS FOR UNBOUND CONTEXT-SENSITIVE PARALLEL RT-TRANSITION ********)
+(* NORMAL TERMS FOR EXTENDED CONTEXT-SENSITIVE PARALLEL RT-TRANSITION *******)
 
 (* Advanced inversion lemmas ************************************************)
 
-lemma cnx_inv_abbr_pos (h) (G) (L):
-      ∀V,T. ❪G,L❫ ⊢ ⬈𝐍[h] +ⓓV.T → ⊥.
-#h #G #L #V #U1 #H
-elim (cpx_subst h G (L.ⓓV) U1 … 0) [|*: /2 width=4 by drops_refl/ ] #U2 #T2 #HU12 #HTU2
+lemma cnx_inv_abbr_pos (G) (L):
+      ∀V,T. ❪G,L❫ ⊢ ⬈𝐍 +ⓓV.T → ⊥.
+#G #L #V #U1 #H
+elim (cpx_subst G (L.ⓓV) U1 … 0) [|*: /2 width=4 by drops_refl/ ] #U2 #T2 #HU12 #HTU2
 elim (teqx_dec U1 U2) #HnU12 [ -HU12 | -HTU2 ]
 [ elim (teqx_inv_lifts_dx … HnU12 … HTU2) -U2 #T1 #HTU1 #_ -T2
   lapply (H T1 ?) -H [ /2 width=3 by cpx_zeta/ ] #H