1. ## Bijection

Hi,
Can you please give me an example for bijective function between
{0, 1}^N and (0, 1, 2, 3}^N?
N is the set of natural numbers.
Thanks for any kind of help

2. Hi

hint: use the base-2 representation:
$00\leftrightarrow 0$
$01\leftrightarrow 1$
$10\leftrightarrow 2$
$11\leftrightarrow 3$