update in basic_2

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

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cnx_basic.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cnx_basic.ma
index 41cb6dad884cb758007a1bf1b5f6e2c7a8219fa8..b99b444cc7e261865883e12099342fdbaeca0293 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cnx_basic.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cnx_basic.ma
@@ -20,7 +20,8 @@ include "basic_2/rt_transition/cnx.ma".
 
 (* Advanced inversion lemmas ************************************************)
 
-lemma cnx_inv_abbr_pos (h) (G) (L): ∀V,T.  ❪G,L❫ ⊢ ⬈[h] 𝐍❪+ⓓV.T❫ → ⊥.
+lemma cnx_inv_abbr_pos (h) (G) (L):
+      ∀V,T. ❪G,L❫ ⊢ ⬈𝐍[h] +ⓓV.T → ⊥.
 #h #G #L #V #U1 #H
 elim (cpx_subst h G (L.ⓓV) U1 … 0) [|*: /2 width=4 by drops_refl/ ] #U2 #T2 #HU12 #HTU2
 elim (teqx_dec U1 U2) #HnU12 [ -HU12 | -HTU2 ]