schauder basis for $\ell_\infty$
59929
Why is $(e_n)$ not a basis for $\ell_\infty$?
148101
Basis for $\mathbb{Z}^2$
127882
Proofs involving orthonormal basis
151467
An infinite generating set of a finite dimensional vector space contains a basis
102585
Why is $L^{\infty}$ not separable?
723
Is there a constructive way to exhibit a basis for $\mathbb{R}^\mathbb{N}$?
43503
Bases of complex vector spaces and the axiom of choice
136635
Proving that the Fourier Basis is complete for C(R/$2*\pi$ , C) with $L^2$ norm
107842
Behaviour of ($\overline{a}_n)_{n=1}^{\infty}$ and ($\underline{a}_n)_{n=1}^{\infty}$
136195
Stuck trying to prove that $e^{-x^{-2}}$ is $C^{\infty}$
119352
compact and self adjoint square root of an operator
96816
The residue at $\infty$
92588
Showing that $(C_0([0,\infty)), \|\cdot\|_\infty)$ is complete.
117211
Infinite linear independent family in a finitely generated $A$-module
154142
Finding a specific basis for an endomorphism
133711
Orthogonal basis for infinite-dimensional vector spaces
115273
Nilpotent matrix and basis for $F^n$