X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fgrammar%2Fterm_simple.ma;h=6bffbf4fa751fb659aa5bff3ddab1c23ba8ee037;hb=37e1b4f314ffae815beca71300688040f8da6939;hp=fba6617b4d65251dce9bd6a4f5836da9036d374d;hpb=c60524dec7ace912c416a90d6b926bee8553250b;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/grammar/term_simple.ma b/matita/matita/contribs/lambdadelta/basic_2/grammar/term_simple.ma
index fba6617b4..6bffbf4fa 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/grammar/term_simple.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/grammar/term_simple.ma
@@ -34,9 +34,9 @@ fact simple_inv_bind_aux: ∀T. 𝐒⦃T⦄ → ∀a,J,W,U. T = ⓑ{a,J} W. U 
 qed.
 
 lemma simple_inv_bind: ∀a,I,V,T. 𝐒⦃ⓑ{a,I} V. T⦄ → ⊥.
-/2 width=7/ qed-.
+/2 width=7 by simple_inv_bind_aux/ qed-.
 
 lemma simple_inv_pair: ∀I,V,T.  𝐒⦃②{I}V.T⦄ → ∃J. I = Flat2 J.
-* /2 width=2/ #a #I #V #T #H
+* /2 width=2 by ex_intro/ #a #I #V #T #H
 elim (simple_inv_bind … H)
 qed-.