- improved lfpr_lfpr

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_transition / lfpr_lfpx.ma

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 aea28258ead0e8b4f55fb26b9d599a86c1952c85..47323a86d149d3a0b141e4be1ce0e016feff16e7 100644 (file)
--- 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 +20,5 @@ 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-.
-
 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-.