X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fstatic%2Flfxs_drops.ma;h=76adfa38b376b35601af4a65037f1bf2ca3620bc;hb=5c186c72f508da0849058afeecc6877cd9ed6303;hp=8e198ac76390ed7276b578c066b02ee92e70a516;hpb=05b047be6817f430c8c72fd9b0902df8bb9f579e;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_drops.ma b/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_drops.ma
index 8e198ac76..76adfa38b 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_drops.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_drops.ma
@@ -25,9 +25,9 @@ definition f_dedropable_sn: predicate (relation3 lenv term term) ≝
                             ∃∃L2. L1 ⪤*[R, U] L2 & ⬇*[b, f] L2 ≘ K2 & L1 ≡[f] L2.
 
 definition f_dropable_sn: predicate (relation3 lenv term term) ≝
-                        λR. ∀b,f,L1,K1. ⬇*[b, f] L1 ≘ K1 → 𝐔⦃f⦄ →
-                        ∀L2,U. L1 ⪤*[R, U] L2 → ∀T. ⬆*[f] T ≘ U →
-                        ∃∃K2. K1 ⪤*[R, T] K2 & ⬇*[b, f] L2 ≘ K2.
+                          λR. ∀b,f,L1,K1. ⬇*[b, f] L1 ≘ K1 → 𝐔⦃f⦄ →
+                          ∀L2,U. L1 ⪤*[R, U] L2 → ∀T. ⬆*[f] T ≘ U →
+                          ∃∃K2. K1 ⪤*[R, T] K2 & ⬇*[b, f] L2 ≘ K2.
 
 definition f_dropable_dx: predicate (relation3 lenv term term) ≝
                           λR. ∀L1,L2,U. L1 ⪤*[R, U] L2 →