Thus, one theory says that the focus of criticism in "Chuhen gikyo" was "Ichijogishu" by Saicho which is known only by the name, while the other theory says that the focus was the book which should be named as "Tendai-Hokke gi" (teachings of Tendai-Hokke sect) which is considered to have been written by Dochu sect.
そのため『中辺義鏡』の批判対象としては、書名のみ残っている最澄の著書『一乗義集』ではないかとする説、もしくは道忠教団によって書かれたと思われる『天台法華義』とでも称すべき書であったとする説がある。