some restyling ...

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_transition / cpx_drops_basic.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_drops_basic.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_drops_basic.ma
index 09b998bae56e04945e439d25707aa3cc5851b9f1..12d23e2175ec1b34f3b9575c51b43913d6419ca3 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_drops_basic.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_drops_basic.ma
@@ -21,7 +21,7 @@ include "basic_2/rt_transition/cpx_drops.ma".
 
 lemma cpx_subst (h) (G) (L) (U1) (i):
                 ∀I,K,V. ⬇*[i] L ≘ K.ⓑ{I}V →
-                ∃∃U2,T2. ⦃G, L⦄ ⊢ U1 ⬈[h] U2 & ⬆[i,1] T2 ≘ U2.
+                ∃∃U2,T2. ⦃G,L⦄ ⊢ U1 ⬈[h] U2 & ⬆[i,1] T2 ≘ U2.
 #h #G #L #U1 @(fqup_wf_ind_eq (Ⓣ) … G L U1) -G -L -U1
 #G0 #L0 #U0 #IH #G #L * *
 [ #s #HG #HL #HT #i #I #K #V #_ destruct -IH