- the trace is explicit in all auto tactics with depth > 1

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / substitution / lift_lift_vector.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/lift_lift_vector.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/lift_lift_vector.ma
index 44ed6a7b4b1b49cda5535ce6877b6e7442d651bd..577682957cb531a6facc330182612815a6635482 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/substitution/lift_lift_vector.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/substitution/lift_lift_vector.ma
@@ -25,6 +25,6 @@ theorem liftv_mono: ∀Ts,U1s,l,m. ⬆[l,m] Ts ≡ U1s →
 [ #U2s #H >(liftv_inv_nil1 … H) -H //
 | #Ts #U1s #T #U1 #HTU1 #_ #IHTU1s #X #H destruct
   elim (liftv_inv_cons1 … H) -H #U2 #U2s #HTU2 #HTU2s #H destruct
-  >(lift_mono … HTU1 … HTU2) -T /3 width=1/
+  >(lift_mono … HTU1 … HTU2) -T /3 width=1 by eq_f/
 ]
 qed.