milestone in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / dynamic / nta_fsb.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/nta_fsb.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/nta_fsb.ma
index b96b1cfd54e068d210facc341d944c45bb2d7931..a987f760f490409a7f91d6b34ee0654c84dc0a86 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/nta_fsb.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/nta_fsb.ma
@@ -23,10 +23,10 @@ include "basic_2/dynamic/nta.ma".
 (* Note: this might use fsb_inv_cast (still to be proved) *)
 (* Basic_1: uses: ty3_sn3 *)
 (* Basic_2A1: uses: nta_fwd_csn *)
-theorem nta_fwd_fsb (a) (h) (o) (G) (L):
+theorem nta_fwd_fsb (a) (h) (G) (L):
         ∀T,U. ⦃G,L⦄ ⊢ T :[a,h] U →
-        ∧∧ ≥[h,o] 𝐒⦃G,L,T⦄ & ≥[h,o] 𝐒⦃G,L,U⦄.
-#a #h #o #G #L #T #U #H
+        ∧∧ ≥[h] 𝐒⦃G,L,T⦄ & ≥[h] 𝐒⦃G,L,U⦄.
+#a #h #G #L #T #U #H
 elim (cnv_inv_cast … H) #X #HU #HT #_ #_ -X
 /3 width=2 by cnv_fwd_fsb, conj/
 qed-.