- basics: some support for abstract triangular confluence (which

[helm.git] / matita / matita / contribs / lambda_delta / basic_2 / unfold / lifts_vector.ma

diff --git a/matita/matita/contribs/lambda_delta/basic_2/unfold/lifts_vector.ma b/matita/matita/contribs/lambda_delta/basic_2/unfold/lifts_vector.ma
index b757b9cb781cda0eda6a1cb12860aac44e4927f6..1690c9f6639c772281fabc0a70da8e29a0c5660c 100644 (file)
--- a/matita/matita/contribs/lambda_delta/basic_2/unfold/lifts_vector.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/unfold/lifts_vector.ma
@@ -29,6 +29,7 @@ interpretation "generic relocation (vector)"
 
 (* Basic inversion lemmas ***************************************************)
 
+(* Basic_1: was: lifts1_flat (left to right) *)
 lemma lifts_inv_applv1: ∀V1s,U1,T2,des. ⇧*[des] Ⓐ V1s. U1 ≡ T2 →
                         ∃∃V2s,U2. ⇧*[des] V1s ≡ V2s & ⇧*[des] U1 ≡ U2 &
                                   T2 = Ⓐ V2s. U2.
@@ -44,6 +45,7 @@ qed-.
 
 (* Basic properties *********************************************************)
 
+(* Basic_1: was: lifts1_flat (right to left) *)
 lemma lifts_applv: ∀V1s,V2s,des. ⇧*[des] V1s ≡ V2s →
                    ∀T1,T2. ⇧*[des] T1 ≡ T2 →
                    ⇧*[des] Ⓐ V1s. T1 ≡ Ⓐ V2s. T2.