Theorem Subgroup.isOpen_of_mem_nhds

Modification history

2024-07-28 23:33

Mathlib/Topology/Algebra/OpenSubgroup.lean

chore: robustifying for debug.byAsSorry (part 13) (#15197)

Modified Subgroup.isOpen_of_mem_nhds View on Github →

2023-03-17 12:26

Mathlib/Topology/Algebra/OpenSubgroup.lean

feat: port Topology.Algebra.OpenSubgroup (#2889)

Added Subgroup.isOpen_of_mem_nhds View on Github →