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Theorems · Theorem · general topology

TopologicalSpace.IsTopologicalBasis.eq_generateFrom

∀ {α : Type u} [t : TopologicalSpace α] {s : Set (Set α)},
  TopologicalSpace.IsTopologicalBasis s → t = TopologicalSpace.generateFrom s

The topology is generated by sets from s.

Defined in
Mathlib.Topology.Bases
Cited by
10 results in Mathlib
Foundations
Depth 8 from the axioms · uses no axioms
Assumes
TopologicalSpace

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