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authorChristian Doczkal2020-09-10 17:45:57 +0200
committerChristian Doczkal2020-09-29 11:10:31 +0200
commit298830c5a3860c7a645df6effe7d1cc228d56150 (patch)
treea9a97a1ba6abd46f94d5ca48ece171cc9d88df2f /mathcomp/solvable/hall.v
parent7a34bf388b368b450f20a7e10e5a3076370d2d52 (diff)
rename mem_imset to imset_f (with deprecation)
Diffstat (limited to 'mathcomp/solvable/hall.v')
-rw-r--r--mathcomp/solvable/hall.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/mathcomp/solvable/hall.v b/mathcomp/solvable/hall.v
index 6234224..119a9fc 100644
--- a/mathcomp/solvable/hall.v
+++ b/mathcomp/solvable/hall.v
@@ -851,7 +851,7 @@ have trNPA: A :^: AG ::&: N = A :^: N.
pose NG := 'N_G(P); have sNG_G : NG \subset G := subsetIl _ _.
have nNGA: A \subset 'N(NG) by rewrite normsI ?norms_norm.
apply/setP=> Ax; apply/setIdP/imsetP=> [[]|[x Nx ->{Ax}]]; last first.
- by rewrite conj_subG //; case/setIP: Nx => AGx; rewrite mem_imset.
+ by rewrite conj_subG //; case/setIP: Nx => AGx; rewrite imset_f.
have ->: N = A <*> NG by rewrite /N /AG !norm_joinEl // -group_modl.
have coNG_A := coprimeSg sNG_G coGA; case/imsetP=> x AGx ->{Ax}.
case/SchurZassenhaus_trans_actsol; rewrite ?cardJg // => y Ny /= ->.