notational change of lift, drop, and gget

[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 d285750a472a735e91f65c4aef4c891ec6a93100..c0c83975e4f5504137f31d976a8376ee5f3c82bf 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
@@ -19,8 +19,8 @@ include "basic_2/substitution/lift_vector.ma".
 
 (* Main properties ***********************************************************)
 
-theorem liftv_mono: â\88\80Ts,U1s,d,e. â\87§[d,e] Ts ≡ U1s →
-                    â\88\80U2s:list term. â\87§[d,e] Ts ≡ U2s → U1s = U2s.
+theorem liftv_mono: â\88\80Ts,U1s,d,e. â¬\86[d,e] Ts ≡ U1s →
+                    â\88\80U2s:list term. â¬\86[d,e] Ts ≡ U2s → U1s = U2s.
 #Ts #U1s #d #e #H elim H -Ts -U1s
 [ #U2s #H >(liftv_inv_nil1 … H) -H //
 | #Ts #U1s #T #U1 #HTU1 #_ #IHTU1s #X #H destruct