Vector space

A module over a field.

Definition

Axiom Statement
Additive associativity \(\mathbf u+(\mathbf v+\mathbf w)=(\mathbf u+\mathbf v)+\mathbf w\)
Additive commutativity \(\mathbf u+\mathbf v=\mathbf v+\mathbf u\)
Additive identity \(\exists\mathbf 0\in V,\forall\mathbf v\in V,\mathbf v+\mathbf 0=\mathbf v\)
Additive inverse \(\forall\mathbf v\in V,\exists-\mathbf v\in V,\mathbf v+(-\mathbf v)=\mathbf 0\)
Multiplicative compatibility \(a(b\mathbf v)=(ab)\mathbf v\)
Multiplicative identity \(1\mathbf v=\mathbf v\)
Distributivity of vector addition \(a(\mathbf u+\mathbf v)=a\mathbf u+a\mathbf v\)
Distributivity of field addition \((a+b)\mathbf v=a\mathbf v+b\mathbf v\)