diff options
Diffstat (limited to 'theories/NArith')
| -rw-r--r-- | theories/NArith/BinNat.v | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/theories/NArith/BinNat.v b/theories/NArith/BinNat.v index 779391ed1..a63eabe5a 100644 --- a/theories/NArith/BinNat.v +++ b/theories/NArith/BinNat.v @@ -126,8 +126,9 @@ Qed. Theorem peano_rect_succ P a f n : peano_rect P a f (succ n) = f n (peano_rect P a f n). Proof. -destruct n; simpl; -[rewrite Pos.peano_rect_base | rewrite Pos.peano_rect_succ]; reflexivity. +destruct n; simpl. +trivial. +now rewrite Pos.peano_rect_succ. Qed. Definition peano_ind (P : N -> Prop) := peano_rect P. |