parked material ...

[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 c0c83975e4f5504137f31d976a8376ee5f3c82bf..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
@@ -19,12 +19,12 @@ include "basic_2/substitution/lift_vector.ma".
 
 (* Main properties ***********************************************************)
 
-theorem liftv_mono: ∀Ts,U1s,d,e. ⬆[d,e] Ts ≡ U1s →
-                    ∀U2s:list term. ⬆[d,e] Ts ≡ U2s → U1s = U2s.
-#Ts #U1s #d #e #H elim H -Ts -U1s
+theorem liftv_mono: ∀Ts,U1s,l,m. ⬆[l,m] Ts ≡ U1s →
+                    ∀U2s:list term. ⬆[l,m] Ts ≡ U2s → U1s = U2s.
+#Ts #U1s #l #m #H elim H -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.