update in static_2

[helm.git] / matita / matita / contribs / lambdadelta / apps_2 / functional / flifts_flifts_basic.ma

diff --git a/matita/matita/contribs/lambdadelta/apps_2/functional/flifts_flifts_basic.ma b/matita/matita/contribs/lambdadelta/apps_2/functional/flifts_flifts_basic.ma
index 7ebdc5dab0c7037cd1eb8bd190f7bcbf597977a0..059bcae657248785941ec9edf23b309cc9798df5 100644 (file)
--- a/matita/matita/contribs/lambdadelta/apps_2/functional/flifts_flifts_basic.ma
+++ b/matita/matita/contribs/lambdadelta/apps_2/functional/flifts_flifts_basic.ma
@@ -23,7 +23,7 @@ theorem flifts_basic_swap (T) (d1) (d2) (h1) (h2):
                           d2 ≤ d1 → ↑[d2,h2]↑[d1,h1]T = ↑[h2+d1,h1]↑[d2,h2]T.
 /3 width=1 by flifts_comp, basic_swap/ qed-.
 (*
-lemma flift_join: â\88\80e1,e2,T. â¬\86[e1,e2] ↑[0,e1] T ≡ ↑[0,e1 + e2] T.
+lemma flift_join: â\88\80e1,e2,T. â\87§[e1,e2] ↑[0,e1] T ≡ ↑[0,e1 + e2] T.
 #e1 #e2 #T
 lapply (flift_lift T 0 (e1+e2)) #H
 elim (lift_split … H e1 e1) -H // #U #H