update in static_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_computation / csx_simple_teqo.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_simple_teqo.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_simple_teqo.ma
index bb450e75608ea6035fa06161956e558249b1cc30..23c4100bafba61f758b939f5184f9164463648fa 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_simple_teqo.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_simple_teqo.ma
@@ -26,7 +26,7 @@ include "basic_2/rt_computation/csx_csx.ma".
 (* Basic_2A1: was: csx_appl_simple_tsts *)
 lemma csx_appl_simple_teqo (G) (L):
       ∀V. ❪G,L❫ ⊢ ⬈*𝐒 V → ∀T1. ❪G,L❫ ⊢ ⬈*𝐒 T1 →
-      (∀T2. ❪G,L❫ ⊢ T1 ⬈* T2 → (T1 ⩳ T2 → ⊥) → ❪G,L❫ ⊢ ⬈*𝐒 ⓐV.T2) →
+      (∀T2. ❪G,L❫ ⊢ T1 ⬈* T2 → (T1 ~ T2 → ⊥) → ❪G,L❫ ⊢ ⬈*𝐒 ⓐV.T2) →
       𝐒❪T1❫ → ❪G,L❫ ⊢ ⬈*𝐒 ⓐV.T1.
 #G #L #V #H @(csx_ind … H) -V
 #V #_ #IHV #T1 #H @(csx_ind … H) -T1