## 6.1. Limits

### Definition 6.1.4: Limit of a function (epsilon-delta Version)

A function

*f*with domain*in***D***converges to a limit***R***L*as*x*approaches a number*c*closure(*) if:***D**given any> 0there exists a> 0such that ifxandD| x - c | <then| f(x) - L | <