Answer
True
Work Step by Step
The statement is exactly the same with Theorem 4.5.23. If the $W=[f_1,f_2,...f_n]$ is nonzero at some point $x_0$ in an interval $I$, then the set of functions $\{f_1,f_2,...f_k\}$ is linearly independent on $I$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.