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-rw-r--r--theories/Reals/Binomial.v7
-rw-r--r--theories/Reals/Rlimit.v2
2 files changed, 5 insertions, 4 deletions
diff --git a/theories/Reals/Binomial.v b/theories/Reals/Binomial.v
index ad076c488..16f2661fe 100644
--- a/theories/Reals/Binomial.v
+++ b/theories/Reals/Binomial.v
@@ -172,13 +172,12 @@ Proof.
apply sum_eq.
intros; apply H1.
unfold N; apply le_lt_trans with n; [ assumption | apply lt_n_Sn ].
- intros; unfold Bn, Cn.
- replace (S N - S i)%nat with (N - i)%nat; reflexivity.
+ reflexivity.
unfold An; fold N; rewrite <- minus_n_n; rewrite H0;
simpl; ring.
apply sum_eq.
- intros; unfold An, Bn; replace (S N - S i)%nat with (N - i)%nat;
- [ idtac | reflexivity ].
+ intros; unfold An, Bn.
+ change (S N - S i)%nat with (N - i)%nat.
rewrite <- pascal;
[ ring
| apply le_lt_trans with n; [ assumption | unfold N; apply lt_n_Sn ] ].
diff --git a/theories/Reals/Rlimit.v b/theories/Reals/Rlimit.v
index 375cc2752..cf7b91af8 100644
--- a/theories/Reals/Rlimit.v
+++ b/theories/Reals/Rlimit.v
@@ -174,6 +174,8 @@ Definition limit_in (X X':Metric_Space) (f:Base X -> Base X')
Definition R_met : Metric_Space :=
Build_Metric_Space R R_dist R_dist_pos R_dist_sym R_dist_refl R_dist_tri.
+Declare Equivalent Keys dist R_dist.
+
(*******************************)
(** * Limit 1 arg *)
(*******************************)