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  ______    ______   __   __     ___     __   _   
 /_   _//  /_   _//  \ \\/ //   / _ \\  | || | || 
 `-| |,-    -| ||-    \   //   / //\ \\ | '--' || 
   | ||     _| ||_    / . \\  |  ___  ||| .--. || 
   |_||    /_____//  /_//\_\\ |_||  |_|||_|| |_|| 
   `-`'    `-----`   `-`  --` `-`   `-` `-`  `-`

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Text this: How to detect linear dependence on the copula level?