<p>In fact, zero is considered even if you are considering the set of integers or natural numbers. Not if you are considering the set of whole numbers. Sort of weird stuff - google it and see what you find - interesting.</p>
<p>In fact, zero is considered even if you are considering the set of integers or natural numbers. Not if you are considering the set of whole numbers. Sort of weird stuff - google it and see what you find - interesting.</p>