1. Definition of Summation Notation If $m$ and $n$ are integers and $m\le n$, then $$\dsum_{r=m}… Read M2
2. Properties of Summation Notation If $k$ is a constant, $m$, $n$ and $p$ are integers and $m \le n … Read M2
3. Principle of Mathematical Induction A proposition $P(n)$ is true for all positive integers $n$ (… Read M2