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  • Nested finite-dimensional subspaces of equal dimension are equal
  • Definition of dimension of a vector space (or subspace)
  • If a vector space has dimension n
  • Every basis for a vector space contains the same number of elements
  • Definition of dimension of a vector space (or subspace) being finite or infinite
  • The dimension of a subspace is less than or equal to the dimension of the whole space
  • A set of vectors containing more elements than the dimension of the space must be linearly dependent
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  1. A set of vectors containing more elements than the dimension of the space must be linearly dependent

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  • If a set of vectors in R^n (or C^n) contains more than n elementsClose match
  • If a vector space has dimension nClose match
  • Linear (in)dependenceClose match
  • Theorem: a set of vectors is linearly dependent if and only if one of the vectors can be written as a linear combination of the other vectorsClose match
  • A set of vectors is linearly independent if and only if the homogeneous linear system corresponding to the matrix of column vectors has only the trivial solution.Close match
  • Definition of linearly dependent set of vectors: one of the vectors can be written as a linear combination of the other vectorsClose match
  • DimensionClose match
  • Any linearly independent set can be expanded to a basis for the (sub)spaceClose match
  • Definition of linearly independent set of vectors: if a linear combination is 0Close match
  • A set is linearly independent if and only if the set of coordinate vectors with respect to any basis is linearly independent.Close match
  • A set of vectors containing fewer elements than the dimension of the space cannot spanClose match
  • Two vectors are dependent iff at least one is a scalar multiple of the otherClose match
  • Definition of linear dependence relation on a set of vectorsClose match
  • Definition of dimension of a vector space (or subspace)Close match
  • Definition of dimension of a vector space (or subspace) being finite or infiniteClose match
  • Every basis for a vector space contains the same number of elementsClose match
  • If a set of vectors contains the 0 vectorClose match
  • Theorem: a set of vectors is linearly independent if and only if whenever a linear combination is 0Close match
  • A set of vectors is linearly independent if and only if the matrix of column vectors in reduced row-echelon form has every column as a pivot column.Close match
  • Definition of trivial linear dependence relation on a set of vectorsClose match

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