nhds_eq_uniformity_prod

∀ {α : Type ua} [inst : UniformSpace α] {a b : α},
  nhds (a, b) = (uniformity α).lift' fun s => {y | (y, a) ∈ s} ×ˢ {y | (b, y) ∈ s}

Defined in: Mathlib.Topology.UniformSpace.Basic
Cited by: 1 results in Mathlib
Foundations: Depth 78 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: UniformSpace

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