X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Flfpr_lfpx.ma;h=e2414b916ffc38cf5d9d778858221dc3b06dd771;hb=bc40346f09bcccb9a09560963ccb7157ebfad7ad;hp=aea28258ead0e8b4f55fb26b9d599a86c1952c85;hpb=7a38c18c277529cb0e0d72d46cd73f6e1097309b;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/lfpr_lfpx.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/lfpr_lfpx.ma
index aea28258e..e2414b916 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/lfpr_lfpx.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/lfpr_lfpx.ma
@@ -20,9 +20,6 @@ include "basic_2/rt_transition/lfpr.ma".
 
 (* Fwd. lemmas with unc. rt-transition for local env.s on referred entries **)
 
-lemma lfpx_frees_conf_fwd_lfpr: ∀h,G. lexs_frees_confluent (cpx h G) cfull →
-                                lexs_frees_confluent (cpm 0 h G) cfull.
-/4 width=7 by cpm_fwd_cpx, lexs_co/ qed-.
-
+(* Basic_2A1: uses: lpr_lpx *)
 lemma lfpr_fwd_lfpx: ∀h,T,G,L1,L2. ⦃G, L1⦄ ⊢ ➡[h, T] L2 → ⦃G, L1⦄ ⊢ ⬈[h, T] L2.
 /3 width=3 by cpm_fwd_cpx, lfxs_co/ qed-.