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authorCyril Cohen2020-09-29 13:24:57 +0200
committerGitHub2020-09-29 13:24:57 +0200
commiteb47a0a031efab69f9a39c8cf356e2304c1e318f (patch)
tree000c3c9d321c68075b672c4367805b7bbcc8ee90 /mathcomp/solvable/hall.v
parent5fc83c2c7610f7034e5c0e92b18093deb340995d (diff)
parent544d89a7711be2f25c3a845130e5cede590bc766 (diff)
Merge pull request #592 from chdoc/mem_imset
Fix naming inconsistencies between `imset` and `map` lemmas.
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 /= ->.