Find a simpler description of the following set: $\bigcup_{i=0}^{\infty}[i, i+2]$?
55619
What does $\bigcup_{i=0}^{\infty}[i, i+2]$ mean?
2882
Limit points of the set $\{\frac {\varphi(n) }n : n\in \mathbb{N}\}$
127720
Prove that $\bigcup_{n \in \Bbb{N}} [1/n,1] = (0,1]$.
146560
Is there any uncountably infinite set that does not generate the reals?
154621
A set with a finite integral of measure zero?
112084
Proof of a formula for the power set of a union of two sets
126569
Can we find a well ordering on an infinite set with no largest element?
98816
How to prove that $\{f+g<a\}=\bigcup_{r\in{\Bbb Q}}(\{f<r\}\cap\{g<a-r\})$?
67084
Prove or disprove that $\lim_{n \to \infty} {n \choose k} / a^n = 0$ for all $k \in \mathbb{Z_+}, a \in \mathbb{R}: a> 1$.
32795
Proving $ \bigcup_{i=1}^n A_{i} \text{ is finite.} $ by Induction.
138069
Proof that $\bigcap_{a\in A} \bigg(\, \bigcup_{b\in B} F_{a,b} \, \bigg) = \bigcup_{f\in ^AB} \bigg(\, \bigcap_{a \in A} F_{a,f(a)}\,\bigg) $
67637
How come $\lambda(\mathbb{Q})= \inf\left\{\sum_{n \ge 1} \lambda([a_n,b_n)) : \mathbb{Q} \subset \bigcup_{n \ge 1} [a_n,b_n)\right\} = 0$?
47313
What is $i^i$ and $(i^i)^i$
143003
$\bigcup \emptyset$ is defined but $\bigcap \emptyset$ is not. Why?
24372
Infinite Set is Disjoint Union of Two Infinite Sets
56233
Is the set of all strings with countably infinite length bijective to $[0,1]$?
69838
Does a countably infinite power set exist?