specializes_of_nhdsWithin

∀ {X : Type u_1} [inst : TopologicalSpace X] {x y : X} {s : Set X}, nhdsWithin x s ≤ nhdsWithin y s → x ∈ s → x ⤳ y

Defined in: Mathlib.Topology.Inseparable
Cited by: 1 results in Mathlib
Foundations: Depth 76 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: TopologicalSpace

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