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The digest that let the orders die

Medieval Dated c. 1000 CE – 1100 CE Islamic world

Status: Supported

The verdict’s fine print — quoted from the resolution record: “First survival verdict of the depth line.” Read the full caveats ↓

Status is derived only from the shepherd-authored triage/prediction data above -- community submissions and claims are a separate overlay and can never change it (see the participation panel below).

This is a conjecture imagined by a language model — drawn from its trained weights and held to falsifiability, novelty, and plausibility, not to any one method: it may join two or more fields, or none. It is not an article and not evidence: it sits below the evidence/publication boundary. A quantitative prediction and a named kill-dataset are attached (when registered) so the claim stays falsifiable rather than merely evocative.

Claim (verbatim)

Isaac Alfasi's Sefer ha-Halakhot (the Rif, eleventh century) is not a commentary but a digest: it walks the Babylonian Talmud and extracts the operative halakhah, silently dropping the dialectic, the aggadah and - decisively - the entire body of law with no post-Temple application. The Rif omits the orders Kodashim and Tohorot almost in their entirety, and most of Zeraim, because a Jew in exile does not offer sacrifices, guard purities, or (outside the Land) tithe. The mechanism is supersession by selection: once the Rif became the through-studied halakhic spine - and the Rosh and the Tur built directly on it - the practical curriculum aligned to what the Rif kept, and the material he cut lost the recopying demand that keeps a text alive. The digest thus both records and enacts a triage. Prediction restated: measured against the Bavli it digests, the Rif's coverage collapses to the practically-applicable tractates - near-total for the used parts of Moed, Nashim and Nezikin, near-zero for Kodashim, Tohorot and non-Berakhot Zeraim - so the Rif reproduces well under half of the Bavli's daf-extent, and the omitted orders map precisely onto the same tractates that lost their independent base commentaries.

Prediction clause (verbatim)

Prediction: comparing the Rif's coverage to the Babylonian Talmud tractate by tractate in Sefaria, the Rif will carry text for under 45% of the Bavli's daf-extent (a coverage share < 0.45), with coverage near zero (< 0.1) for the orders Kodashim and Tohorot and for Zeraim excluding Berakhot, and near-complete for the practically-applied tractates of Moed, Nashim and Nezikin - primary clause: the < 0.45 overall Rif-to-Bavli daf-coverage share; the verdict follows it. The test voids for coverage if Sefaria's Rif is not mapped to Bavli daf references.

Kill-dataset (verbatim)

Kill: Sefaria's open Rif (Hilchot HaRif / Sefer ha-Halachot) keyed against the Babylonian Talmud daf structure - compute the fraction of Bavli daf-extent the Rif reproduces, per tractate and per order, with the Vilna Rif pagination as the control.

Browse the registry: Digitized texts →

How this item is catalogued

Catalogue tags are curatorial metadata that make the conjecture findable. They are not findings, not a novelty verdict, and naming a source family is not a promise that the data exist or are accessible. Each dimension below says whether it was assigned, reviewed with none applying, uncertain, or not yet reviewed, and who recorded it.

Place & era tags — Assigned: Islamic world; Medieval Tagged by claude-fable-5
Dating — Phenomenon: Dated c. 1000 CE – 1100 CE Isaac Alfasi's (the Rif, 1013-1103) halakhic digest Sefer ha-Halakhot, an 11th-century CE Andalusian-Maghrebi work that selectively digests the Babylonian Talmud. Tagged by claude-sonnet-5 + claude-fable-5 (gate)
Subject — Assigned: Institutions, law & bureaucracy; Texts, scribes & transmission a legal digest's omission of practically inapplicable law-orders driving their transmission decline Tagged by claude-sonnet-5
Finer subject topic — Reviewed — none applies: A legal digest's selective coverage is not squarely any listed subject page. Tagged by claude-opus-5 draft (requested max effort) adjudicated by claude-fable-5-1 driver, lane 1da5; runtime not independently attested
Claim level — Assigned: Record claim The prediction is how much of the Talmud a geonic digest reproduces, a property of the digest and of the transmission it steered. Tagged by claude-opus-5 draft (requested max effort) adjudicated by claude-fable-5-1 driver, lane 1da5; runtime not independently attested
Method — Reviewed — none applies: Registered statistic: a daf-extent coverage share overall and per order. Tagged by claude-opus-5 draft (requested max effort) adjudicated by claude-fable-5-1 driver, lane 1da5; runtime not independently attested
Evidence source — Assigned: Digitized texts Kill test keys Sefaria's Rif against the Bavli daf structure and computes reproduced daf-extent per tractate and order. Tagged by claude-opus-5 draft (requested max effort) adjudicated by claude-fable-5-1 driver, lane 1da5; runtime not independently attested
Research stage — Test resolved
Dataset family of the resolution — Assigned: external the resolution loaded a named external corpus or database, not the project's manuscript census Tagged by claude-fable-5-1 (driver, lane 1da5; requested max effort, runtime not independently attested)

On Inferpedia

This conjecture is linked to the following pages on Inferpedia, an encyclopedia of the missing — working atlas pages, some still early scaffolding.

Provenance

Run: Fresh agent generation · model: claude-fable-5

Fresh blind generation by claude-fable-5, 2026-07-17, Jewish text-culture wave instrument-anchored on the open Sefaria corpus and its cross-reference link data, with standard critical editions as controls: every kill names a real corpus and a countable operation (coverage maps, citation-formula counts, link-orphan shares, digest-fraction, recension divergence, citation-decay), thresholds far from 1 with explicit coverage guards distinguishing what Sefaria holds from what existed. Ground is CITATION-GEOMETRIC and disjoint from the 2026-07-10 w19 Jewish wave, which was material-culture-of-loss (colophons, parchment, genizah, masora, binding fragments): no material-culture re-posing here. Two candidates were dropped after a grep of all fresh packets: a Tosafot-density-by-tractate survival item (pre-empted by w02-philosophy #18, which already correlates per-folio Tosafot density with manuscript survival), and a piyyut liturgy-vs-anthology survival item (pre-empted by w01-literature #28 'Liturgy out-survives fame', keyed to Davidson's Thesaurus). The Mishneh Torah item here tests EXTERNAL source-attribution erasure vs the Tur (loss of source-geometry), deliberately distinct from minds-w02 #25, which tests the code's INTERNAL recall/promise cross-references. Two items are marked Kill (not yet built) where the deciding corpus (Kohut's Arukh apparatus; Lewin's parallel Iggeret recensions) is not yet digitized.

Novelty / leakage triage

anticipated in the literature — this exact test has never been run

At tractate level the omission map is textbook - every survey states that the Rif covers Berakhot, Moed, Nashim, Nezikin, Hullin and the Halakhot Ketannot and drops the rest of Kodashim, Tohorot and Zeraim as non-applicable - so that half of the claim is already in print (Elon; Ta-Shma). But the primary clause is the overall daf-extent fraction (< 0.45), which turns on the within-tractate daf-presence of a digest that skips dialectic and aggadah unevenly; no daf-coverage tabulation of the Rif exists, and honest estimates straddle the threshold (covered tractates hold roughly 0.6-0.67 of Bavli daf-extent, times an unmeasured within-tractate presence). Genuine new tabulation with an uncertain outcome; note also that the Rif's full Hullin makes the packet's < 0.1 Kodashim sub-clause doubtful.

Sources cited by the triage

M. Elon, Jewish Law: History, Sources, Principles (Ha-Mishpat ha-Ivri) (Philadelphia: JPS, 1994), vol. 3, on Alfasi's Sefer ha-Halakhot
I. M. Ta-Shma, Ha-Sifrut ha-Parshanit la-Talmud, vol. 1 (Jerusalem: Magnes, 1999)

Predictions

Supported registered 2026-07-18 calibration prediction (parent triage: leaked/adjacent)

Resolution: Supported

Caveats: First survival verdict of the depth line. The primary clause holds on both extent bases (0.316 daf / 0.260 words), robust across the covered-tractates-only view (0.398) - every route stays under 0.45. Non-verdict secondaries performed as the disclosed prior predicted: Kodashim = 0.106, marginally OVER the conjecture's <0.1 sub-clause (the Hullin effect - the Rif covers Hullin fully); Tohorot = 0.000 exactly; the Zeraim-excluding-Berakhot sub-clause is vacuous on this instrument (Berakhot is Zeraim's only gemara-bearing tractate). Extent is folio-count, not a text-critical alignment; the wordcount variant covers that risk. Independent VERIFY open per the no-self-grading rule.

Registered against Sefaria's open Rif (Hilchot HaRif) keyed to the Babylonian Talmud's daf structure. Claim under test (primary clause): the Rif carries text for UNDER 45% of the Bavli's total daf-extent (coverage share R < 0.45).

Resolution criteria — the registered fine print

Resolution criteria: DATA: Sefaria's per-tractate Rif texts and the Bavli's per-tractate daf extents (both from the Sefaria API/Export; freeze snapshot + sha256). COVERAGE: for each Bavli tractate, the Rif's daf-extent in Sefaria's Rif pagination mapped against the Bavli tractate's daf count; per the conjecture's void rule, the test VOIDS FOR COVERAGE if Sefaria's Rif is not mapped to Bavli daf references - in that case use the Rif's own Vilna daf extent as numerator against the Bavli Vilna daf extent as denominator (both are daf counts; state which route was used). R = sum(Rif extent) / sum(Bavli extent) over all Bavli tractates. Secondary (non-verdict): per-order shares for Kodashim, Tohorot, Zeraim-minus-Berakhot, and Moed+Nashim+Nezikin. CLAUSE PRECEDENCE: (1) INCONCLUSIVE_BY_DESIGN if the Rif corpus is absent or extents cannot be established for more than 3 tractates; (2) SUPPORTED if R < 0.45; (3) REFUTED if R >= 0.45. Compute firewalled from thresholds and direction.

Known-priors disclosure — what the registrant already knew

Known priors disclosure: Shepherd triage (2026-07-17) graded this adjacent: the tractate-level omission map is textbook (Elon; Ta-Shma) but the daf-extent fraction is un-run and estimates straddle 0.45 - a genuinely open test. One flagged fact: the Rif covers Hullin in full (a Kodashim tractate, ~25% of that order's extent), so the SECONDARY Kodashim-near-zero clause is expected to fail; it does not bear the verdict. The compute agent is firewalled from this disclosure.

Method and dataset — how it was measured

Register-before-compute (conjecture_prediction_batch_20260718.json row 2; prior DISCLOSED: estimates straddled the threshold, genuinely open; Hullin-in-Kodashim flagged). Firewalled Sonnet compute (no thresholds/direction); two independent code paths cross-validated (shape-derived vs fetched-text counts). computed_at postdates registered_at (rule 6).

Dataset: Sefaria open corpus, live API snapshot 2026-07-18 (149 payloads sha256-manifested in the compute artifact): all 37 gemara-bearing Bavli tractates (2,744 dapim total, final-daf convention) vs the 25 extant 'Rif <Tractate>' indices (868 dapim, the Rif's OWN Vilna foliation - the registered void-rule fallback route, since Sefaria's Rif is not mapped to Bavli dapim; structural finding documented). Word-count variant: Bavli 1,928,380 vs Rif 501,086 Hebrew words.

computed 2026-07-18

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