X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsubstitution%2Fgget.ma;h=1ea9ce7ffc87dc46e376b8b0f0095997fe5a7339;hb=37e1b4f314ffae815beca71300688040f8da6939;hp=eb5c8fdabc78625e42fe64a2787c6b5f620fa66a;hpb=c60524dec7ace912c416a90d6b926bee8553250b;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/gget.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/gget.ma
index eb5c8fdab..1ea9ce7ff 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/substitution/gget.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/substitution/gget.ma
@@ -74,7 +74,7 @@ lemma gget_total: ∀m,G1. ∃G2. ⬇[m] G1 ≡ G2.
 #m #G1 elim G1 -G1 /3 width=2 by gget_gt, ex_intro/
 #I #V #G1 * #G2 #HG12
 elim (lt_or_eq_or_gt m (|G1|)) #Hm
-[ /3 width=2/
+[ /3 width=2 by gget_lt, ex_intro/
 | destruct /3 width=2 by gget_eq, ex_intro/
 | @ex_intro [2: @gget_gt normalize /2 width=1 by/ | skip ] (**) (* explicit constructor *)
 ]