大般涅槃經義記 6.413

6.413

第七門中，先舉疑心，謂疑世間邊無邊等，下明聞斷，「是名」下結。

In the seventh gate, it first raises the doubting mind, namely doubting whether the world is bounded, boundless, and so forth; below, it clarifies that it is severed upon hearing, and concludes from "is called" on down.