Range of linear transformation is subspace of codomain

Dependencies:

  1. Linear transformation
  2. Condition for being a subspace

Let $T: U \mapsto V$ be a linear transformation. Then the range of $T$ (denoted as $T(U)$) is a subspace of $V$.

Proof

\[ T(x), T(y) \in T(U) \implies T(x) + T(y) = T(x+y) \in T(U) \] \[ T(x) \in T(U) \implies cT(x) = T(cx) \in T(U) \]

Therefore, $T(U)$ is a subspace of $V$.

Dependency for:

  1. Basis of range of linear transformation

Info:

Transitive dependencies:

  1. Group
  2. Ring
  3. Field
  4. Vector Space
  5. Zeros in vector space
  6. Negation in vector space
  7. Linear transformation
  8. Identity of a group is unique
  9. Subgroup
  10. Inverse of a group element is unique
  11. Conditions for a subset to be a subgroup
  12. Condition for a subset to be a subgroup
  13. Condition for being a subspace