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- Definition: Continuous Functions at Single Real Numbers
- Definition: Continuous Real Functions
- Definition: Even and Odd Complex Functions
- Section: Differentiable Functions
- Definition: Continuously Differentiable Functions
- Definition: Uniformly Continuous Functions (Real Case)
- Definition: Periodic Functions
- Definition: Even and Odd Functions
- Section: Integrable Functions
- Lemma: Invertible Functions on Real Intervals
- Definition: Convex and Concave Functions
- Definition: Logarithmically Convex and Concave Functions
- Section: Uniform Convergence of Functions
- Definition: Monotonic Functions
- Definition: Bounded and Unbounded Functions