CatDat

category of Hausdorff spaces

This is the full subcategory of Top\Top consisting of those spaces that are Hausdorff.

Satisfied Properties

Assigned properties

Deduced properties

Unsatisfied Properties

Assigned properties

Deduced properties*

*This also uses the deduced satisfied properties.

Unknown properties

Special objects

  • terminal object: singleton space
  • initial object: empty space
  • products: direct product with the product topology
  • coproducts: disjoint union with the disjoint union topology

Special morphisms

  • isomorphisms: homeomorphisms
  • monomorphisms: injective continuous maps
  • epimorphisms: continuous maps with dense image
  • regular monomorphisms: embeddings with closed image
  • regular epimorphisms: surjective quotient maps