If $X$ is an infinite set and $N$ is a countable set, then what is the cardinality of $X \times N$?
9651
Cardinality of cartesian product of an infinite set with N
12436
The cardinality of the set of all finite subsets of an infinite set
154474
Image of countable and uncountable sets
158671
Cardinality of a set that consists of all existing cardinalities
121366
Intervals and cardinality
73850
Cardinality of set of functions
108922
Cardinality and infinite sets: naturals, integers, rationals, bijections
19297
Is the cofinite topology on an uncountable set first countable?
144787
Show that the set of all infinite subsets of $\mathbb{N}$ has cardinality greater than $\mathbb{N}$
125411
Infinite set always has a countably infinite subset
114262
Find the cardinality of the following set $S_n=\{(x,y)|x^2+y^2=n, \text{where }x,y,n \in \mathbb Z\text{ and }n\geq0 \}$
19777
Defining "Countably Infinite"
132868
Bijection between an infinite set and its union of a countably infinite set
42794
Prove that functions map countable sets to countable sets
12472
Let $X$ and $Y$ be countable sets. Then $X\cup Y$ is countable
151295
Proving $|S \times \mathbb{N}|=|S|$ when $S$ is an infinite set
85099
How many subsets of $\mathbb{N}$ have the same cardinality as $\mathbb{N}$?