CatDat

category of free abelian groups

  • notation: FreeAb\mathbf{FreeAb}
  • objects: free abelian groups
  • morphisms: group homomorphisms
  • Related categories: Ab\mathbf{Ab}

Properties

Properties from the database

Deduced properties

Non-Properties

Non-Properties from the database

Deduced Non-Properties*

*This also uses the deduced properties.

Unknown properties

For these properties the database currently doesn't have an answer if they are satisfied or not. Please help to complete the data!

Special morphisms

  • Isomorphisms: bijective homomorphisms
  • Monomorphisms: injective homomorphisms
  • Epimorphisms: homomorphisms f:ABf : A \to B with the property that f(A)f(A) is not contained in a proper direct summand of BB.

Comments

  • Sequential colimits are discussed at MSE/5025660. Probably they do not exist.