doc: tidy the docstring of Subgroup.centralizer (#20365)

The argument is now named `s` as it has type `Set G` (not `Subgroup G`)
leanprover-community · Jan 1, 2025 · bd681bc · bd681bc
1 parent 7178aee
commit bd681bc
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/Mathlib/GroupTheory/Subgroup/Centralizer.lean b/Mathlib/GroupTheory/Subgroup/Centralizer.lean
@@ -17,9 +17,9 @@ namespace Subgroup
 
 variable {H K : Subgroup G}
 
-/-- The `centralizer` of `H` is the subgroup of `g : G` commuting with every `h : H`. -/
+/-- The `centralizer` of `s` is the subgroup of `g : G` commuting with every `h : s`. -/
 @[to_additive
-      "The `centralizer` of `H` is the additive subgroup of `g : G` commuting with every `h : H`."]
+      "The `centralizer` of `s` is the additive subgroup of `g : G` commuting with every `h : s`."]
 def centralizer (s : Set G) : Subgroup G :=
   { Submonoid.centralizer s with
     carrier := Set.centralizer s