Is there a specific symbol for $\mathbb{N}\cup\lbrace 0\rbrace$?
130866
The best symbol for non-negative integers?
16559
Difference between $\mathbb{Z}/n\mathbb{Z}$ and $\mathbb{Z}_n$
124116
What does the notation $\binom{n}{i}$ mean?
723
Is there a constructive way to exhibit a basis for $\mathbb{R}^\mathbb{N}$?
32769
What means a "$\setminus$" logic symbol?
105594
Fixed point, union of $\aleph_0, \aleph_{\aleph_0},\aleph_{\aleph_{\aleph_0}}\dots$ [see Noah's comment on notation]
27899
Can we prove the existence of $A\cup B$ without the union axiom?
66272
Is there a common notion of $\mathbb{R}^n$, for non-integer $n$?
77735
When $\Bbb Z_n$ is a domain. Counterexample to $ab \equiv 0 \Rightarrow a\equiv 0$ or $b\equiv 0\pmod n$
47562
Confusion in symbol of subset.
32489
How does bra-ket notation work?
19260
What does the notation $q^k || n$ mean?
144048
Linear Operators satisfying $S^n=0$ but $S^{n-1}\neq 0$
51099
\mathbb{Z} yields undefined control sequence error
41248
How to represent 1 as Symbol["Integer"]
143003
$\bigcup \emptyset$ is defined but $\bigcap \emptyset$ is not. Why?
73826
Interior product (contraction) symbol