update in basic_2 and ground_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / static / lfxs_length.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_length.ma b/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_length.ma
index 5f8b62e081f0a4d899a6af62356b725665435ce2..2d2b51d81afd059781fc1879a55a0e4c7f2f866b 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_length.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_length.ma
@@ -29,8 +29,8 @@ qed-.
 (* Basic_2A1: uses: llpx_sn_lift_le llpx_sn_lift_ge *)
 lemma lfxs_lifts_bi: ∀R.d_liftable2_sn … lifts R →
                      ∀L1,L2. |L1| = |L2| → ∀K1,K2,T. K1 ⪤*[R, T] K2 →
-                     â\88\80b,f. â¬\87*[b, f] L1 â\89¡ K1 â\86\92 â¬\87*[b, f] L2 â\89¡ K2 →
-                     â\88\80U. â¬\86*[f] T â\89¡ U → L1 ⪤*[R, U] L2.
+                     â\88\80b,f. â¬\87*[b, f] L1 â\89\98 K1 â\86\92 â¬\87*[b, f] L2 â\89\98 K2 →
+                     â\88\80U. â¬\86*[f] T â\89\98 U → L1 ⪤*[R, U] L2.
 #R #HR #L1 #L2 #HL12 #K1 #K2 #T * #f1 #Hf1 #HK12 #b #f #HLK1 #HLK2 #U #HTU
 elim (frees_total L1 U) #f2 #Hf2
 lapply (frees_fwd_coafter … Hf2 … HLK1 … HTU … Hf1) -HTU #Hf