It is proved that every nonzero ideal in a finite-dimensional semi-simple algebra over a field is generated by an unique central idempotent.是什么意思_It is proved that every nonzero ideal in a finite-dimensional semi-simple algebra over a field is generated by an unique central idempotent.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句