Let $A$ and $B$ be algebras over a field $K$. The ideals of the tensor product $A\bigotimes_K B$ are of the form $I\bigotimes_K J$ where $I$ is an ideal of $A$ and $J$ is an ideal of $B$?
closed as too localized by Martin Brandenburg, Mariano Suárez-Alvarez♦, Bill Johnson, Leonid Positselski, Andreas Blass Jan 20 '12 at 18:29
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