category of countable-dimensional vector spaces

Notation VectKc\Vect^\c_K Objects vector spaces over a field KK of countable dimension Morphisms linear maps Related Grpc\Grp_\cSetc\Set_\cFinVectK\FinVect_KVectK\Vect_K

This is a full subcategory of VectK\Vect_K containing FinVectK\FinVect_K. Up to isomorphism, the only object in VectKcFinVectK\Vect^\c_K \setminus \FinVect_K is KNK^{\oplus \IN}.

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: trivial vector space
  • initial object: trivial vector space
  • products: [finite case] direct products
  • coproducts: [countable case] direct sums

Special morphisms

  • isomorphisms: bijective linear maps
  • monomorphisms: injective linear maps
  • epimorphisms: surjective linear maps
  • regular monomorphisms: same as monomorphisms
  • regular epimorphisms: same as epimorphisms