In mathematics, a simple function is typically defined as a function that can be expressed as a finite sum of simple components. The most common context where "simple function" is used is in measure theory, where a simple function is a measurable function that takes only a finite number of values. ### Characteristics of Simple Functions: 1. **Finite Range**: A simple function only assumes a finite set of values. For instance, the function can take values \( c_1, c_2, ...

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