update in ground_2, static_2, basic_2, apps_2, alpha_1

[helm.git] / matita / matita / contribs / lambdadelta / static_2 / static / req_drops.ma

diff --git a/matita/matita/contribs/lambdadelta/static_2/static/req_drops.ma b/matita/matita/contribs/lambdadelta/static_2/static/req_drops.ma
index 0eae38683e849dccd1b7b4f17c61e072f43a55bd..fa8ea6d8441c5c048f88ed74cb0ba0af238f50f7 100644 (file)
--- a/matita/matita/contribs/lambdadelta/static_2/static/req_drops.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/static/req_drops.ma
@@ -20,7 +20,7 @@ include "static_2/static/req.ma".
 (* Note: req_inv_lifts_dx missing in basic_2A1 *)
 
 (* Basic_2A1: uses: lleq_inv_lift_le lleq_inv_lift_be lleq_inv_lift_ge *)
-lemma req_inv_lifts_bi: â\88\80L1,L2,U. L1 â\89¡[U] L2 â\86\92 â\88\80b,f. ð\9d\90\94â¦\83fâ¦\84 →
-                        â\88\80K1,K2. â¬\87*[b, f] L1 â\89\98 K1 â\86\92 â¬\87*[b, f] L2 ≘ K2 →
-                        â\88\80T. â¬\86*[f] T ≘ U → K1 ≡[T] K2.
+lemma req_inv_lifts_bi: â\88\80L1,L2,U. L1 â\89¡[U] L2 â\86\92 â\88\80b,f. ð\9d\90\94â\9dªfâ\9d« →
+                        â\88\80K1,K2. â\87©*[b,f] L1 â\89\98 K1 â\86\92 â\87©*[b,f] L2 ≘ K2 →
+                        â\88\80T. â\87§*[f] T ≘ U → K1 ≡[T] K2.
 /2 width=10 by rex_inv_lifts_bi/ qed-.