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Chapter 1: What Kind of Book the Two Hundred Fascicles Are

[PLANNED] This chapter has not yet been written; what follows is a skeleton. Items may be added or removed, and the order may change.

What this chapter does. Before reading any passage of the Mahāvibhāṣā, one question: what holds these two hundred fascicles up. The answer fixes the way of reading: the book is long because it multiplied out everything there was to multiply, and it is not complex because the multipliers are few. The chapter turns that sentence into a verifiable finding, and the rest of the part reads by it.

Structure.

First, the format of a commentary that expounds the Jñānaprasthāna and ranges wide: question, answer, "further," "the evaluation says"; how one root treatise was worked into two hundred fascicles. The relation of the root text to the six "feet" treatises is covered only as far as needed.

Second, the inventory of formulas: "further" 3,625, "some say" 3,313, "likewise" 1,626, "why is that" 785, "and so on at length" 696, "a tetralemma should be made" 312 — a small set of forms unfolded over a large stock of items; that is where the bulk comes from.

Third, the equal-length comparison with the Abhidharmakośa. Two vernacular translations from the same hand, cut to equal length: twelve-character window repetition 15.9 percent against 1.8, twenty-character window 7.4 against 0.4, compression ratio 0.270 against 0.346, and the Vibhāṣā uses fewer distinct characters. The Kośa almost never says a sentence twice; a gap of nine and eighteen times is more than the difference of genre between a digest and a great commentary can explain.

Fourth, the format is deliberate. The opening announces the purpose of stopping other schools and displaying the school's own thesis; the book states again and again that the scripture it rests on left things unsaid which the treatise must now say. The format is not a lapse; it is the charter.

Fifth, the legend of the council under Kaniṣka and the five hundred arhats, and how the identity of the Vaibhāṣika took shape. The historical assessment is taken from secondary scholarship; the history itself belongs to Part 3.

Data and sources. Formula counts verified against the classical text of the full two hundred fascicles; the equal-length comparison is documented in the planning file; the council legend follows Xuanzang's travel record (reference to be verified).

To Chapter 2. With the source of the bulk established, the actual state of the argument: in one and the same book, classification and reasoning are not of the same order.