Zero vector in a vector space.
120475
Vector spaces - Multiplying by zero scalar yields zero vector
129810
What kind of vector spaces have exactly one basis?
27478
Proof that two basis of a vector space have the same cardinality in the infinite-dimensional case
86362
Cyclic vectors in a real vector space
133711
Orthogonal basis for infinite-dimensional vector spaces
2762
Mapping of zero vector under a linear transformation
56102
Prove that there is no non-zero linear operator on $\mathbb C^{2}$ such that $(\alpha | T\alpha) = 0$
47015
Vector Space Structures over ($\mathbb{R}$,+)
37119
Determine Which of the following Sets is a Vector Space
61274
If $AA^T$ is the zero matrix, then $A$ is the zero matrix
76160
Dimension of the sum of two vector subspaces
105014
Is the zero vector in $\mathbb{R}^n$ by itself a subspace of $\mathbb{R}^n$?
4374
Geometric interpretation of a vector space and subspace?
156431
Testing for a vector of reals
113326
Proving orthogonality of vectors in a complex vector space
37206
$\mathbb{R}^n\times\{0\}$ has measure zero in $\mathbb{R}^{n+1}$
28819
A union of two subspaces not equal to the vector space.