Finding bases for subspaces of $F^5$
100749
How to find bases for a subspace defined by an equation
6547
Given $3$-dimensional subspaces $V, W \subset \Bbb R^5$, there is a nonzero vector in $V \cap W$
7723
Countable basis of function spaces
48579
How to find the orthogonal complement of a subspace?
95513
Proving $W$ is a subspace of $P_{2}$
134162
What is a basis for the space of $n\times n$ Hermitian matrices?
29403
Finding functions $f: \Bbb R_*^+ \to \Bbb R_*^+$ with certain properties
139988
Counter example for a result of intersection of subspaces
120766
Prove ${y_n}$ is a basis for a Hilbert space $H$.
152742
Finding a basis of an infinite-dimensional vector space?
4163
Schauder basis of $(c,\|\cdot\|_{\infty})$
51313
Extension of linearly independent set to a basis in an infinite dimensional vector space
146690
Basis for adjoint representation of $sl(2,F)$
98949
Subspaces and annihilators
82474
Isometries of $\mathbb{R}^n$
158156
Finding the dual basis for the space of polynomials of degree $\leq$ 2
108226
Are these bases for a topology?