Equipotency

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Below are different sets.
Which of these sets are equipotent to $\mathbb{N}$ and which to $\mathbb{R}$

Drag each setto the correct column.

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$\bigl\{U\subset \mathbb{N}\mid U\text{ is a finite subset}\bigr\}$

$(-\tfrac{1}{2}\pi, \tfrac{1}{2}\pi)$

$\mathbb{R}^{+}$

$\{p\mid p\text{ is a polynomial with integral coefficients}\}$

$\mathbb{Z}^{+}$

$\bigl\{n\in \mathbb{N}\mid n\text{ is a prime number}\bigr\}$

Naive set theory: Size of a set

Equipotency

\mathbb{N}

\mathbb{R}

$\mathbb{N}$

$\mathbb{R}$