Subgroup.isOpen_of_mem_nhds

∀ {G : Type u_1} [inst : Group G] [inst_1 : TopologicalSpace G] [SeparatelyContinuousMul G] (H : Subgroup G) {g : G},
  ↑H ∈ nhds g → IsOpen ↑H

Defined in: Mathlib.Topology.Algebra.OpenSubgroup
Cited by: 3 results in Mathlib
Foundations: Depth 67 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: Group TopologicalSpace SeparatelyContinuousMul

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