X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Frelocation%2Flifts_tdeq.ma;h=3485e88cd57655fddbb7b6e9a2600855290a402a;hb=67fe9cec87e129a2a41c75d7ed8456a6f3314421;hp=5aee3ad12030883c8754776cf334c0efbc2629ed;hpb=4173283e148199871d787c53c0301891deb90713;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_tdeq.ma b/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_tdeq.ma
index 5aee3ad12..3485e88cd 100644
--- a/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_tdeq.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_tdeq.ma
@@ -38,6 +38,9 @@ lemma tdeq_lifts_sn: liftable2_sn tdeq.
 ]
 qed-.
 
+lemma tdeq_lifts_dx: liftable2_dx tdeq.
+/3 width=3 by tdeq_lifts_sn, liftable2_sn_dx, tdeq_sym/ qed-.
+
 lemma tdeq_lifts_bi: liftable2_bi tdeq.
 /3 width=6 by tdeq_lifts_sn, liftable2_sn_bi/ qed-.
 
@@ -69,7 +72,7 @@ lemma tdeq_inv_lifts_bi: deliftable2_bi tdeq.
 /3 width=6 by tdeq_inv_lifts_sn, deliftable2_sn_bi/ qed-.
 
 lemma tdeq_lifts_inv_pair_sn (I) (f:rtmap):
-                             ∀X,T. ⬆*[f]X ≘ T → ∀V. ②{I}V.T ≛ X → ⊥.
+                             ∀X,T. ⇧*[f]X ≘ T → ∀V. ②{I}V.T ≛ X → ⊥.
 #I #f #X #T #H elim H -f -X -T
 [ #f #s #V #H
   elim (tdeq_inv_pair1 … H) -H #X1 #X2 #_ #_ #H destruct