X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Frdsx_length.ma;h=75177be45a94b0998147235354e25574203485dc;hb=b4283c079ed7069016b8d924bbc7e08872440829;hp=22451994bd725814da4b0e69bf07ff9e532fe3ca;hpb=ff612dc35167ec0c145864c9aa8ae5e1ebe20a48;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rdsx_length.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rdsx_length.ma
index 22451994b..75177be45 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rdsx_length.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rdsx_length.ma
@@ -21,19 +21,19 @@ include "basic_2/rt_computation/rdsx.ma".
 (* Advanced properties ******************************************************)
 
 (* Basic_2A1: uses: lsx_sort *)
-lemma rdsx_sort (h) (o) (G): ∀L,s. G ⊢ ⬈*[h, o, ⋆s] 𝐒⦃L⦄.
-#h #o #G #L1 #s @rdsx_intro #L2 #H #Hs
+lemma rdsx_sort (h) (G): ∀L,s. G ⊢ ⬈*[h,⋆s] 𝐒⦃L⦄.
+#h #G #L1 #s @rdsx_intro #L2 #H #Hs
 elim Hs -Hs /3 width=3 by lpx_fwd_length, rdeq_sort_length/
 qed.
 
 (* Basic_2A1: uses: lsx_gref *)
-lemma rdsx_gref (h) (o) (G): ∀L,l. G ⊢ ⬈*[h, o, §l] 𝐒⦃L⦄.
-#h #o #G #L1 #s @rdsx_intro #L2 #H #Hs
+lemma rdsx_gref (h) (G): ∀L,l. G ⊢ ⬈*[h,§l] 𝐒⦃L⦄.
+#h #G #L1 #s @rdsx_intro #L2 #H #Hs
 elim Hs -Hs /3 width=3 by lpx_fwd_length, rdeq_gref_length/
 qed.
 
-lemma rdsx_unit (h) (o) (G): ∀I,L. G ⊢ ⬈*[h, o, #0] 𝐒⦃L.ⓤ{I}⦄.
-#h #o #G #I #L1 @rdsx_intro
+lemma rdsx_unit (h) (G): ∀I,L. G ⊢ ⬈*[h,#0] 𝐒⦃L.ⓤ{I}⦄.
+#h #G #I #L1 @rdsx_intro
 #Y #HY #HnY elim HnY -HnY
 elim (lpx_inv_unit_sn … HY) -HY #L2 #HL12 #H destruct
 /3 width=3 by lpx_fwd_length, rdeq_unit_length/