category of rings

Notation Ring\Ring Objects rings Morphisms ring homomorphisms Parent Alg(R)\Alg(R) Related CRing\CRingRng\RngMon\Mon External nLab Link

Here, rings always have a unit, and homomorphisms preserve them. This category is the special case of Alg(R)\Alg(R) where R=ZR = \IZ.

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: zero ring
  • initial object: ring of integers
  • products: direct products with pointwise operations
  • coproducts: see MSE/625874

Special morphisms

  • isomorphisms: bijective morphisms
  • monomorphisms: injective morphisms
  • epimorphisms:
  • regular monomorphisms:
  • regular epimorphisms: surjective morphisms

Indistinguishable categories

These categories in the database currently have exactly the same properties as the category of rings. This indicates that the data may be incomplete or that a distinguishing property may be missing from the database.

Comments

Functors

The database stores 5 functors based on the category of rings.