X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fi_static%2Ftc_lfxs.ma;h=da4959b88dbe4c7f9dedcafa27445409f4bc79bb;hb=5c186c72f508da0849058afeecc6877cd9ed6303;hp=5fbe3afe2a6ec8e13cc2867d052a77c1d20eafa5;hpb=75f395f0febd02de8e0f881d918a8812b1425c8d;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/i_static/tc_lfxs.ma b/matita/matita/contribs/lambdadelta/basic_2/i_static/tc_lfxs.ma
index 5fbe3afe2..da4959b88 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/i_static/tc_lfxs.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/i_static/tc_lfxs.ma
@@ -56,7 +56,7 @@ lemma tc_lfxs_unit: ∀R,f,I,L1,L2. 𝐈⦃f⦄ → L1 ⪤*[cext2 R, cfull, f] L
 /3 width=3 by lfxs_unit, inj/ qed.
 
 lemma tc_lfxs_lref: ∀R,I,L1,L2,V1,V2,i.
-                    L1 ⪤**[R, #i] L2 → L1.ⓑ{I}V1 ⪤**[R, #⫯i] L2.ⓑ{I}V2.
+                    L1 ⪤**[R, #i] L2 → L1.ⓑ{I}V1 ⪤**[R, #↑i] L2.ⓑ{I}V2.
 #R #I #L1 #L2 #V1 #V2 #i #H elim H -L2
 /3 width=4 by lfxs_lref, tc_lfxs_step_dx, inj/
 qed.