X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fstatic%2Ffrees_frees.ma;h=7a10ca0c098b3ceec4c6cc76cb77921afad2dbd2;hp=d694ca4554f251d2cd55ad587a790e916ad15f53;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/static_2/static/frees_frees.ma b/matita/matita/contribs/lambdadelta/static_2/static/frees_frees.ma
index d694ca455..7a10ca0c0 100644
--- a/matita/matita/contribs/lambdadelta/static_2/static/frees_frees.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/static/frees_frees.ma
@@ -18,7 +18,7 @@ include "static_2/static/frees.ma".
 
 (* Main inversion lemmas ****************************************************)
 
-theorem frees_mono: ∀f1,L,T. L ⊢ 𝐅+⦃T⦄ ≘ f1 → ∀f2. L ⊢ 𝐅+⦃T⦄ ≘ f2 → f1 ≡ f2.
+theorem frees_mono: ∀f1,L,T. L ⊢ 𝐅+❪T❫ ≘ f1 → ∀f2. L ⊢ 𝐅+❪T❫ ≘ f2 → f1 ≡ f2.
 #f1 #L #T #H elim H -f1 -L -T
 [ /3 width=3 by frees_inv_sort, isid_inv_eq_repl/
 | #f1 #i #Hf1 #g2 #H