diff options
Diffstat (limited to 'mathcomp/solvable/alt.v')
| -rw-r--r-- | mathcomp/solvable/alt.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mathcomp/solvable/alt.v b/mathcomp/solvable/alt.v index f43c89a..baf4792 100644 --- a/mathcomp/solvable/alt.v +++ b/mathcomp/solvable/alt.v @@ -36,7 +36,7 @@ Definition Sym of phant T : {set {perm T}} := setT. Canonical Sym_group phT := Eval hnf in [group of Sym phT]. -Notation Local "'Sym_T" := (Sym (Phant T)) (at level 0). +Local Notation "'Sym_T" := (Sym (Phant T)) (at level 0). Canonical sign_morph := @Morphism _ _ 'Sym_T _ (in2W (@odd_permM _)). @@ -44,7 +44,7 @@ Definition Alt of phant T := 'ker (@odd_perm T). Canonical Alt_group phT := Eval hnf in [group of Alt phT]. -Notation Local "'Alt_T" := (Alt (Phant T)) (at level 0). +Local Notation "'Alt_T" := (Alt (Phant T)) (at level 0). Lemma Alt_even p : (p \in 'Alt_T) = ~~ p. Proof. by rewrite !inE /=; case: odd_perm. Qed. |