diff options
Diffstat (limited to 'theories/PArith/Pnat.v')
-rw-r--r-- | theories/PArith/Pnat.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/PArith/Pnat.v b/theories/PArith/Pnat.v index 31e88a403..33505ccb3 100644 --- a/theories/PArith/Pnat.v +++ b/theories/PArith/Pnat.v @@ -192,7 +192,7 @@ Qed. Theorem inj_iter : forall p {A} (f:A->A) (x:A), - Pos.iter p f x = nat_iter (to_nat p) f x. + Pos.iter p f x = nat_rect (fun _ => A) x (fun _ => f) (to_nat p). Proof. induction p using peano_ind. trivial. intros. rewrite inj_succ, iter_succ. simpl. now f_equal. |