Are the algebraic numbers dense in $\mathbb{C}$?
35105
Density of ring of algebraic integers in $\mathbb C$
84189
Is $\mathbb{C}$ equal to $\mathbb{R}^2$?
137081
Is the set of real matrices diagonalizable in $\mathcal M_n(C)$ dense in the set of all companion matrices?
69946
Do the polynomials $(1+z/n)^n$ converge compactly to $e^z$ on $\mathbb{C}$?
82824
Affine algebraic subset of $\mathbb{A}_k^4$
17461
Show that a set is dense in $[-1,1]$
48127
Are there infinitely many $A\in \mathbb{C}^{2 \times 2}$ satisfying $A^3 = A$?
88523
Show that $A=\{ \frac{m}{2^n}:m\in \mathbb {Z},n\in \mathbb {N} \} $ is dense in $\mathbb {R}$
112909
is a number field by definition a subfield of $ \mathbb C $?
51687
Is the set $ \ (\mathbb{Z}_p \setminus \mathbb{Z}) \cap \mathbb{Q}$ non-empty?
25795
Density of $\mathbb{Q}^n$ in $\mathbb{R}^n$
132382
Showing a set is nowhere dense in $C([0,1])$
51514
Is $n \sin n$ dense on the real line?
3606
Wild automorphisms of the complex numbers
68490
For $x\in\mathbb R\setminus\mathbb Q$, the set $\{nx-\lfloor nx\rfloor: n\in \mathbb{N}\}$ is dense on $[0,1)$
97878
Are there uncountably many surjections from $\mathbb N$ to $\mathbb N$?
142577
Algebraic proof that a set generated by irrational rotations is dense in $S^1$.