Linear space

A space $$V$$ with defined operations:

  • vector addition: $$V \times V \rigtarrow V$$ (or $$v + u$$)
  • scalar multiplication: $$\mathbb{F} \times V \rightarrow V$$ (or $$\alpha v$$)

Axioms

  1. associativity
  2. commutativity
  3. identity element of vector addition
  4. inverse element
  5. compatibility
  6. identity element of scalar multiplication
  7. distributivity of scalar multiplication with respect to field addition
  8. distributivity of scalar multiplication with respect to vector addition