Structure

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 FinVectK\FinVect_K, VectK\Vect_K, Grpc\Grp_\c, Setc\Set_\c
This is a full subcategory of VectK\Vect_K containing FinVectK\FinVect_K. Up to isomorphism, the only object in VectKc∖FinVectK\Vect^\c_K \setminus \FinVect_K is K⊕NK^{\oplus \IN}.

Satisfied properties

Assigned properties

Deduced properties

Unsatisfied properties

Assigned properties

Deduced properties*

*This also uses the deduced satisfied properties.

Unknown properties

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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