X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Frelocation%2Fsex_length.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Frelocation%2Fsex_length.ma;h=50ed1d839e236b6254c9bde1e909a339880874a5;hb=8ec019202bff90959cf1a7158b309e7f83fa222e;hp=c99c786c68d41be159f2a31c71b5b041e005f3de;hpb=33d0a7a9029859be79b25b5a495e0f30dab11f37;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/static_2/relocation/sex_length.ma b/matita/matita/contribs/lambdadelta/static_2/relocation/sex_length.ma
index c99c786c6..50ed1d839 100644
--- a/matita/matita/contribs/lambdadelta/static_2/relocation/sex_length.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/relocation/sex_length.ma
@@ -36,7 +36,7 @@ lemma sex_length_cfull: ∀L1,L2. |L1| = |L2| → ∀f. L1 ⪤[cfull,cfull,f] L2
 qed.
 
 lemma sex_length_isid: ∀R,L1,L2. |L1| = |L2| →
-                       ∀f. 𝐈❪f❫ → L1 ⪤[R,cfull,f] L2.
+                       ∀f. 𝐈❨f❩ → L1 ⪤[R,cfull,f] L2.
 #R #L1 elim L1 -L1
 [ #Y2 #H >(length_inv_zero_sn … H) -Y2 //
 | #L1 #I1 #IH #Y2 #H #f #Hf