[[Group action]]
# Continuous group action

Let $X$ be a [[topological space]] and $G$ be a [[topological group]] acting on $X$.
The [[group action]] $\varphi : G \times X \to X$ is called **continuous** iff $\varphi$ is continuous with respect to the product topology. #m/def/group

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#state/tidy | #lang/en | #SemBr