nhdsLT_sup_nhdsGE

∀ {α : Type u_1} [inst : TopologicalSpace α] [inst_1 : LinearOrder α] (a : α),
  nhdsWithin a (Set.Iio a) ⊔ nhdsWithin a (Set.Ici a) = nhds a

Defined in: Mathlib.Topology.Order.LeftRight
Cited by: 4 results in Mathlib
Foundations: Depth 64 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: TopologicalSpace LinearOrder

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