Mathlib Map

Structures · Topology

T0Space

A T₀ space, also known as a Kolmogorov space, is a topological space such that for every pair x ≠ y, there is an open set containing one but not the other. We formulate the definition in terms of the Inseparable relation.

Defined in
Mathlib.Topology.Separation.Basic
Shape
One type argument · adds t0

Extends0

Extends nothing: this is a root of the hierarchy.

Extended by6

Concrete types that are instances25

  • TopCat.carrier
  • SeparationQuotient
  • UniformSpace.Completion
  • IsDedekindDomain.HeightOneSpectrum.adicCompletion
  • DomMulAct
  • WithLp
  • RestrictedProduct
  • DomAddAct
  • ContinuousMapZero
  • TopologicalSpace.NonemptyCompacts
  • PrimeSpectrum
  • TopologicalSpace.Compacts
  • PiLp
  • TopologicalSpace.Closeds
  • OnePoint
  • Metric.Snowflaking
  • TopologicalSpace.Opens.CompleteCopy
  • UniformSpaceCat.carrier
  • CpltSepUniformSpace.α
  • Subtype
  • Prod
  • ULift
  • ContinuousMap
  • Set
  • Filter

How is a type an instance?

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Assumed by194

Ancestors0

No ancestors.