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Theorem
Subgroup.toAddSubgroup_comap
Modification history
2024-11-21 09:25
Mathlib/Algebra/Group/Subgroup/Basic.lean
chore(Algebra/Group/Subgroup): split `Lattice`, `Map`, `Ker` from `Basic.lean` (#19295) …
Modified
Subgroup.toAddSubgroup_comap
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2023-10-16 13:44
Mathlib/GroupTheory/Subgroup/Basic.lean
feat: add a Module.Finite instance for units of number field (#7412) …
Added
Subgroup.toAddSubgroup_comap
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