# Same cardinality

## Homework Statement

$F(\mathbb{Q},\mathbb{R})$ is the set of maps from $\mathbb{Q}$ to $\mathbb{R}$. Then show that $F(\mathbb{Q},\mathbb{R})$ and $\mathbb{R}$ have same potency (cardinal number?)..

## The Attempt at a Solution

I am no tsure but I think I need to find bijection map between these sets, but how???

What is the cardinal number of $F(\mathbb{Q},\mathbb{R})$??