CatDat

discrete category on two objects

  • notation: 2\mathbf{2}
  • objects: two objects
  • morphisms: only the two identity morphisms
  • Related categories: 1\mathbf{1}

For a more concrete representation, this is the subcategory of CRing\mathbf{CRing} of the two fields F2\mathbb{F}_2 and F3\mathbb{F}_3.

Satisfied Properties

Properties from the database

Deduced properties

Unsatisfied Properties

Properties from the database

Deduced properties*

*This also uses the deduced satisfied properties.

Unknown properties

Special objects

Special morphisms

  • isomorphisms: every morphism
  • monomorphisms: every morphism
  • epimorphisms: every morphism
  • regular monomorphisms: same as monomorphisms
  • regular epimorphisms: same as epimorphisms