X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcpxs_aaa.ma;h=24aa4a6aa0019adc8a0d9ddd792a7b4e0105dc4d;hb=d4ab51c20dbccd1e88cd2c4dcdaf3b4e56301155;hp=3fa11c67307bd950deae4e2651802bf4574ba852;hpb=d1bd9d230123f4045e2472d073c5dc4b5da30b34;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_aaa.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_aaa.ma
index 3fa11c673..24aa4a6aa 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_aaa.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_aaa.ma
@@ -19,8 +19,6 @@ include "basic_2/rt_computation/cpxs.ma".
 
 (* Properties with atomic arity assignment on terms *************************)
 
-lemma cpxs_aaa_conf: ∀h,G,L,T1,A. ⦃G, L⦄ ⊢ T1 ⁝ A →
-                     ∀T2. ⦃G, L⦄ ⊢ T1 ⬈*[h] T2 → ⦃G, L⦄ ⊢ T2 ⁝ A.
-#h #G #L #T1 #A #HT1 #T2 #HT12
-@(TC_Conf3 … HT1 ? HT12) -A -T1 -T2 /2 width=5 by cpx_aaa_conf/
+lemma cpxs_aaa_conf: ∀h,G,L. Conf3 … (aaa G L) (cpxs h G L).
+#h #G #L @TC_Conf3 @cpx_aaa_conf (**) (* auto fails *)
 qed-.