Artificial intelligent assistant

English word for a "pavé" in French In French, a subset $P \subseteq \mathbb R^n$ that can be written as the product of $n$ finite open intervals is called a "pavé". Is there a word in English to designate such an object?

In Rudin's _Principles of Mathematical Analysis_ , the term "$k$-cell" is used for the product of $k$ closed intervals. This appears to be standard enough in English mathematics that it is the title of the relevant Wikipedia article).

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