X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsyntax%2Flveq_lveq.ma;h=40a5fb5c86152316956817fe42f548133bdcebf6;hp=3d3417dba8897d7d6f9e834d9f295404ec5cb865;hb=222044da28742b24584549ba86b1805a87def070;hpb=26d2ecb945a881c61d03f3c259996374209f5d7f

diff --git a/matita/matita/contribs/lambdadelta/basic_2/syntax/lveq_lveq.ma b/matita/matita/contribs/lambdadelta/basic_2/syntax/lveq_lveq.ma
index 3d3417dba..40a5fb5c8 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/syntax/lveq_lveq.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/syntax/lveq_lveq.ma
@@ -38,7 +38,7 @@ qed-.
 theorem lveq_inj_void_sn_ge: ∀K1,K2. |K2| ≤ |K1| →
                              ∀n1,n2. K1 ≋ⓧ*[n1, n2] K2 →
                              ∀m1,m2. K1.ⓧ ≋ⓧ*[m1, m2] K2 →
-                             ∧∧ ⫯n1 = m1 & 0 = m2 & 0 = n2.
+                             ∧∧ ↑n1 = m1 & 0 = m2 & 0 = n2.
 #L1 #L2 #HL #n1 #n2 #Hn #m1 #m2 #Hm
 elim (lveq_fwd_length … Hn) -Hn #H1 #H2 destruct
 elim (lveq_fwd_length … Hm) -Hm #H1 #H2 destruct
@@ -49,5 +49,5 @@ qed-.
 theorem lveq_inj_void_dx_le: ∀K1,K2. |K1| ≤ |K2| →
                              ∀n1,n2. K1 ≋ⓧ*[n1, n2] K2 →
                              ∀m1,m2. K1 ≋ⓧ*[m1, m2] K2.ⓧ →
-                             ∧∧ ⫯n2 = m2 & 0 = m1 & 0 = n1.
+                             ∧∧ ↑n2 = m2 & 0 = m1 & 0 = n1.
 /3 width=5 by lveq_inj_void_sn_ge, lveq_sym/ qed-. (* auto: 2x lveq_sym *)