Definition 1. Let $V$, $W$ be vector spaces over a field $F$ and $f : V \to W$ be a linear function. By LF > Proposition 4, $\im f$ is a subspace. The rank of $f$ is the dimension of $\im f$:
Pub May 14, 2026 Up Jun 20, 2026
Definition 1. Let $V$, $W$ be vector spaces over a field $F$ and $f : V \to W$ be a linear function. By LF > Proposition 4, $\im f$ is a subspace. The rank of $f$ is the dimension of $\im f$: