Section CardVspace.
Variables (F : finFieldType) (T : finType).
Section Vector.
Variable cvT : Vector.class_of F T.
Let vT := Vector.Pack (Phant F) cvT.

(* Specifications: *)
Lemma card_vspace (V : {vspace vT}) : #|V| = (#|F| ^ \dim V)%N.
Lemma card_vspacef : #|{: vT}%VS| = #|T|.
Module FinVector.