We will prove that, for every non-negative integer $n$, *insert property here* For $n = 0$, *The property* is true because *explicit verification of this case* For any $n > 0$, assuming *the property* is true for $n-1$ (or, for all $k < n$), *the property* is true at $n$ because *explain why we can take a step up* Therefore, by induction, *the property* is true for all n.