Use Mathematical Induction to Prove That the Statement Is True $$\left( 1 - \frac { 1 } { 2 } \right) \left( 1 - \frac { 1 } { 3 } \right) \cdots \left( 1 - \frac { 1 } { n + 1 } \right) = \frac { 1 } { n + 1 }$$

Essay

Use mathematical induction to prove that the statement is true for every positive integer n.
- $$\left( 1 - \frac { 1 } { 2 } \right) \left( 1 - \frac { 1 } { 3 } \right) \cdots \left( 1 - \frac { 1 } { n + 1 } \right) = \frac { 1 } { n + 1 }$$