ThmDex – An index of mathematical definitions, results, and conjectures.
F9904
Formulation 0
Let $f : (0, \infty) \to (0, \infty)$ be a D4364: Real function such that
(i) $p \in (0, \infty)$ is a D5407: Positive real number
(ii) \begin{equation} f(t) = t^p \end{equation}
Let $x, y \in (0, \infty)$ each be a D5407: Positive real number such that
(i) \begin{equation} x < y \end{equation}
Then \begin{equation} f(x) < f(y) \end{equation}