diff options
Diffstat (limited to 'mathcomp/fingroup/perm.v')
| -rw-r--r-- | mathcomp/fingroup/perm.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mathcomp/fingroup/perm.v b/mathcomp/fingroup/perm.v index 01ef08e..b1a7dd7 100644 --- a/mathcomp/fingroup/perm.v +++ b/mathcomp/fingroup/perm.v @@ -129,7 +129,7 @@ Lemma perm_inj s : injective s. Proof. by rewrite -!pvalE; apply: (injectiveP _ (valP s)). Qed. Arguments perm_inj : clear implicits. -Hint Resolve perm_inj. +Hint Resolve perm_inj : core. Lemma perm_onto s : codom s =i predT. Proof. by apply/subset_cardP; rewrite ?card_codom ?subset_predT. Qed. |