Theorem SubgroupClass.subset_union

Modification history

2024-10-28 17:42
Mathlib/Algebra/Group/Subgroup/Basic.lean
chore(Algebra/Group/Subgroup): split off `Defs` file (#18340) …
Modified SubgroupClass.subset_unionView on Github →
2023-12-17 15:16
Mathlib/GroupTheory/Subgroup/Basic.lean
chore(Ideal/Operations): remove extraneous nonempty conditions (#9115) …
Added SubgroupClass.subset_unionView on Github →