Unification enhanchement.

diff --git a/helm/matita/library/nat/permutation.ma b/helm/matita/library/nat/permutation.ma
index 0aea7b76177b8e3579368a631b77cf5c08c7ba64..c64cb23de3c0a7a7b2074a458fb9df4917323fef 100644 (file)
--- a/helm/matita/library/nat/permutation.ma
+++ b/helm/matita/library/nat/permutation.ma
@@ -339,7 +339,7 @@ apply bijn_transpose.
 simplify in H1.
 elim H1 (S n1).assumption.apply le_n.apply le_n.
 apply bijn_n_Sn.
-apply H ?.
+apply H.
 apply permut_S_to_permut_transpose.
 assumption.simplify.
 rewrite > eqb_n_n (f (S n1)).simplify.reflexivity.
@@ -469,17 +469,17 @@ apply nat_elim1 k.
 intro.
 apply nat_case m ?.
 intros.
-apply eq_map_iter_transpose_i_Si f H H1 g n i.
+apply eq_map_iter_transpose_i_Si ? H H1.
 exact H3.
 intros.
 apply trans_eq ? ? (map_iter (S n) (\lambda m. g (transpose i (S(m1 + i)) m)) f a).
-apply H2 m1 ? g.
+apply H2.
 simplify. apply le_n.
 apply trans_le ? (S(S (m1+i))).
 apply le_S.apply le_n.assumption.
 apply trans_eq ? ? (map_iter (S n) (\lambda m. g 
 (transpose i (S(m1 + i)) (transpose (S(m1 + i)) (S(S(m1 + i))) m))) f a).
-apply H2 O ? ? (S(m1+i)) ?.
+apply H2 O ? ? (S(m1+i)).
 simplify.apply le_S_S.apply le_O_n.
 exact H3.
 apply trans_eq ? ? (map_iter (S n) (\lambda m. g