CatDat

category of rings

Here, rings always have a unit, and homomorphisms preserve them.

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

There is 1 property for which the database doesn't have an answer if it is satisfied or not. Please help to contribute the data!

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 ring homomorphisms
  • monomorphisms: injective ring homomorphisms
  • epimorphisms:
  • regular monomorphisms:
  • regular epimorphisms: surjective homomorphisms

Undistinguishable 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.

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