- we polarized binders to control zeta reduction

[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 7b4923bbe6b3a60530fc9731d3d55130f1c3c87e..7169d1af40530f9b980381a1fd83966975e0ec23 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
@@ -20,7 +20,7 @@ include "basic_2/grammar/term_simple.ma".
 let rec applv Vs T on Vs ≝
   match Vs with
   [ nil        ⇒ T
-  | cons hd tl ⇒  ⓐhd. (applv tl T)
+  | cons hd tl ⇒ ⓐhd. (applv tl T)
   ].
 
 interpretation "application o vevtor (term)"
@@ -28,6 +28,6 @@ interpretation "application o vevtor (term)"
 
 (* properties concerning simple terms ***************************************)
 
-lemma applv_simple: ∀T,Vs.  𝐒[T] -> 𝐒[ⒶVs.T].
+lemma applv_simple: ∀T,Vs.  𝐒⦃T⦄ → 𝐒⦃ⒶVs.T⦄.
 #T * //
 qed.