Applied Mathematics 1411A/B Chapter Notes - Chapter 4.5.2: Linear Combination, Linear Independence, Moveon.Org
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The rest of this section is talking about the subtle interrelationships among the concepts of linear independence, spanning sets, basis and dimension. Let s be a nonempty set of vectors in a vector space v. a) b) If s is a linearly independent set, and if v is a vector in v that is outside of span(s), then the set. S u {v} that results by inserting v into s is still linearly independent. If you start with a set s of two or more vectors in which one of the vectors is a linear combination of the others then that vector can be removed from s without affecting the span(s). a. So that vector can be removed without affecting the other set that is defined as all the possible linear combinations of s. Let v be an n-dimensional vector space, and let s be a set in v with exactly n vectors.