advances on cpx_lfxs_conf_fle

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_computation / lfpxs_etc.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/lfpxs_etc.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/lfpxs_etc.ma
index d1971805860f9cb419915042b31c2da9c3e09826..0f34a15b3acb8763af3ffc7af3fa9c7fe993937a 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/lfpxs_etc.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/lfpxs_etc.ma
@@ -3,6 +3,10 @@ include "basic_2/static/lfxs_lex.ma".
 include "basic_2/rt_transition/cpx_etc.ma".
 include "basic_2/rt_computation/lfpxs_lpxs.ma".
 
+lemma R_fle_comp_LTC: ∀R. R_fle_compatible R → R_fle_compatible (LTC … R).
+#R #HR #L #T1 #T2 #H elim H -T2
+/3 width=3 by fle_trans_dx/
+qed-.
 lemma lfpxs_cpx_conf: ∀h,G. s_r_confluent1 … (cpx h G) (lfpxs h G).
 #h #G #L1 #T1 #T2 #HT12 #L2 #H
 elim (tc_lfxs_inv_lex_lfeq … H) -H #L #HL1 #HL2