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IsTopologicalGroup.exist_openNormalSubgroup_sub_clopen_nhds_of_one
Modification history
2025-05-22 19:35
Mathlib/Topology/Algebra/ClopenNhdofOne.lean
chore: replace nhd with nhds (#25108)
Added
IsTopologicalGroup.exist_openNormalSubgroup_sub_clopen_nhds_of_one
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