diff options
Diffstat (limited to 'mathcomp/algebra/matrix.v')
| -rw-r--r-- | mathcomp/algebra/matrix.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mathcomp/algebra/matrix.v b/mathcomp/algebra/matrix.v index f49473f..21730c3 100644 --- a/mathcomp/algebra/matrix.v +++ b/mathcomp/algebra/matrix.v @@ -2395,7 +2395,7 @@ rewrite (reindex (lift_perm i0 j0)); last first. by rewrite lift_perm_lift -si0 permE ulsfK. rewrite /cofactor big_distrr /=. apply: eq_big => [s | s _]; first by rewrite lift_perm_id eqxx. -rewrite -signr_odd mulrA -signr_addb odd_add -odd_lift_perm; congr (_ * _). +rewrite -signr_odd mulrA -signr_addb oddD -odd_lift_perm; congr (_ * _). case: (pickP 'I_n) => [k0 _ | n0]; last first. by rewrite !big1 // => [j /unlift_some[i] | i _]; have:= n0 i. rewrite (reindex (lift i0)). |