nhdsKer_singleton_eq_ker_nhds

∀ {X : Type u_2} [inst : TopologicalSpace X] (x : X), nhdsKer {x} = (nhds x).ker

Defined in: Mathlib.Topology.NhdsKer
Cited by: 3 results in Mathlib
Foundations: Depth 52 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: TopologicalSpace

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