X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsubstitution%2Ffsups.ma;h=d915b89f10290853bff78338aeda8981393880a7;hb=90ee1e85245752414b93826aabe388409571187a;hp=e2a52aeef98829809486f313b0971939af22124e;hpb=874cacec64d0aab52ab1a21aad23208f52f50caf;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/fsups.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/fsups.ma
index e2a52aeef..d915b89f1 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/substitution/fsups.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/substitution/fsups.ma
@@ -63,6 +63,11 @@ lemma fsups_fsupp_fsupp: ∀L1,L,L2,T1,T,T2. ⦃L1, T1⦄ ⊃* ⦃L, T⦄ →
 lemma fsupp_fsups_fsupp: ∀L1,L,L2,T1,T,T2. ⦃L1, T1⦄ ⊃+ ⦃L, T⦄ →
                          ⦃L, T⦄ ⊃* ⦃L2, T2⦄ → ⦃L1, T1⦄ ⊃+ ⦃L2, T2⦄.
 /2 width=4/ qed.
+(*
+lemma fsups_pippo: ∀L,T. ⦃L, T⦄ ⊃+ ⦃L, #0⦄.
+#L * *
+[ #i 
+*)
 
 (* Basic forward lemmas *****************************************************)