The chapter closes: whoever grasps the valid and invalid ways can tell sound from unsound reasoning from texts. (v1/277)
[Editorial] Debate note (bāb): B7.11–B7.15 is Sarakhsī's case against mafhūm al-mukhālafa and against carrying the unqualified onto the qualified; B7.16–B7.19 (occasion, aim, joining, plural to a group) share the same charge. Its recurring charge is "acting on the silent" (al-ʿamal bi-l-maskūt). When a debate turns on "the ḥadīth implies the opposite for those not named", check which of these faṣls governs (name, number, description, condition, occasion, aim, joining), since Sarakhsī answers each separately.