X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frelocation%2Fdrops.ma;h=5e8cfaeaacc6823246e51cbe5b8451ea49fa77bf;hb=7cf2232827c06c7e85a9bc3be005f9134d5b869d;hp=d469f0ac178cb7c9c66d767fd22d392a46de8c08;hpb=51b414e3a6f7404b16cab112e94f57aaa94a5239;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/relocation/drops.ma b/matita/matita/contribs/lambdadelta/basic_2/relocation/drops.ma
index d469f0ac1..5e8cfaeaa 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/relocation/drops.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/relocation/drops.ma
@@ -432,10 +432,12 @@ qed-.
 
 (* Properties with context-sensitive equivalence for terms ******************)
 
-lemma ceq_lift_sn: d_liftable2_sn … liftsb ceq.
+lemma ceq_lift_sn: d_liftable2_sn … liftsb ceq_ext.
+#K #I1 #I2 #H <(ceq_ext_inv_eq … H) -I2
 /2 width=3 by ex2_intro/ qed-.
 
-lemma ceq_inv_lift_sn: d_deliftable2_sn … liftsb ceq.
+lemma ceq_inv_lift_sn: d_deliftable2_sn … liftsb ceq_ext.
+#L #J1 #J2 #H <(ceq_ext_inv_eq … H) -J2
 /2 width=3 by ex2_intro/ qed-.
 
 (* Note: d_deliftable2_sn cfull does not hold *)