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@@ -339,17 +339,32 @@ nowhere in git (`docs/` is gitignored).
window can never be empty of a Sunday (unlike RG 17(a)'s Holy Name,
which carries an explicit calendarium fallback for its own narrower
window) — checked, not assumed; no fallback built. `Precedence_ef.band`
- gained a movable-half priority for entry 14 (`entry_14_movable_band`,
- negative so it can never collide with a real table position) — without
- it, Holy Family would tie with the fixed Commemoration of the Baptism of
- the Lord (13 January) at the literal integer 14 and lose the kernel's own
- alphabetical tie-break, backwards from RG 91's own stated order.
+ gained a movable-half priority for entry 14 — without it, Holy Family
+ would tie with the fixed Commemoration of the Baptism of the Lord
+ (13 January) and lose the kernel's alphabetical tie-break, backwards
+ from RG 91's own stated order. **The whole table is now scaled ×10**
+ (entry *n* → 10*n*), so a half-row is expressed as an ordinary position
+ between its neighbours. *(CORRECTED: this paragraph previously described
+ `entry_14_movable_band` as "negative so it can never collide with a real
+ table position". That was the bug, not the design — a negative sentinel
+ avoids **collision** but also inverts **ordering**, making a movable
+ II-class feast of the Lord outrank every I-class day. Unreachable on
+ universal data; live the moment a diocesan overlay puts a I-class proper
+ or indult feast, RG 91 entries 12–13, in the 7–13 January window. Do not
+ re-derive the sentinel approach.)*
`disposition` gained RG 112(a) (a mystery of one Divine Person excludes a
- commemoration of another mystery of the SAME Divine Person) — directly
- confirmed by a MORE SPECIFIC primary source found while building this,
- the Holy Family Mass propers' own 13-January rubric (both photographic
- scans, absent from the electronic transcription along with RG 112(a)'s
- own worked example — the transcription-defect pattern found again, §6.-1).
+ commemoration of another mystery of the SAME Divine Person). The primary
+ authority is **RG 95 ¶2** — *"Si vero duo festa eiusdem Divinæ Personæ…
+ fit de festo, quod in tabella præcedentiæ superiorem obtinet locum, et
+ aliud omittitur"* — an occurrence-level rule present in all three
+ documents; RG 112(a) and the Holy Family Mass propers' own 13-January
+ rubric corroborate it. *(CORRECTED: this previously called the propers'
+ rubric a further instance of the transcription defect. It is not. The
+ transcription carries RG 112 in full; RG 112 has no worked example in
+ either scan; and the propers' note is absent because that document is a
+ partial 2006 web capture containing almost no propers text — one
+ `Introitus` in 26 322 lines against 52 in a scan. Diagnose the cause of a
+ silence before invoking the rule.)*
**Blast radius, measured (`git archive` pre-change binary vs HEAD, full
1583–9999 sweep, diffed): 1 220 days, every single one the identical
shape, cross-verified against `date -d` independently (exactly 1 220