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What does the dot mean in probability notation

I sometimes see things like $x \sim P_t(\centerdot \vert x, \theta_{db})$

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The dot, $\cdot$, in this context is a placeholder for an event or random variable.

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    @Zaz I found this post with more elaboration: https://math.stackexchange.com/questions/1942419/what-does-this-notation-mean-p-cdot2018-09-05