- substitution lemma for native type assignmenr proved!

[helm.git] / matita / matita / contribs / lambda_delta / basic_2 / grammar / term_vector.ma

diff --git a/matita/matita/contribs/lambda_delta/basic_2/grammar/term_vector.ma b/matita/matita/contribs/lambda_delta/basic_2/grammar/term_vector.ma
index 2b3f8880ee2a7152cddbb807a080bc06469dd186..7b4923bbe6b3a60530fc9731d3d55130f1c3c87e 100644 (file)
--- a/matita/matita/contribs/lambda_delta/basic_2/grammar/term_vector.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/grammar/term_vector.ma
@@ -12,8 +12,8 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "Ground_2/list.ma".
-include "Basic_2/grammar/term.ma".
+include "ground_2/list.ma".
+include "basic_2/grammar/term_simple.ma".
 
 (* TERMS ********************************************************************)
 
@@ -25,3 +25,9 @@ let rec applv Vs T on Vs ≝
 
 interpretation "application o vevtor (term)"
    'SnApplV Vs T = (applv Vs T).
+
+(* properties concerning simple terms ***************************************)
+
+lemma applv_simple: ∀T,Vs.  𝐒[T] -> 𝐒[ⒶVs.T].
+#T * //
+qed.