| Commit message (Collapse) | Author | Age | Files | Lines |
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The BVM Saturday Office is itself "de B. Maria Virg."; RG 112(d) (Caput
XVI, "De Commemorationibus") excludes another commemoration whose own
oration invokes the SAME BVM's intercession. our-lady-of-mt-carmel (16
July, Commemoration_only) was wrongly admitted as an ordinary
commemoration alongside the Office on every 16-July-Saturday -- its own
collect explicitly invokes "her" (eius) patronage, and both photographic
scans print a rubric anticipating exactly this collision (an either/or
of Mass texts, not a joint commemoration).
Precedence_ef gains marian_slugs (a closed, hand-verified list of
sanctoral slugs that are themselves feasts of the BVM) and is_bvm_office
(true for subject = Bvm OR a marian_slugs member -- the disjunction is
load-bearing: the Office is identified only by subject, since its own
slug is deliberately reused from the ordinary ferial fallback; Mt Carmel
is identified only by the list, since its own subject tag is Saint, not
Bvm). disposition gains a new branch, checked before the pre-existing
Commemoration_only catch-all, since the one live witness is
Commemoration_only and that branch's own "always Commemorate" had no
exception for this shape.
Checked exhaustively against every Marian-named sanctoral entry: only
Commemoration_only-status entries can ever reach this branch live (a
Feast-status one always wins outright instead of losing). Of the two
such entries in the data, only Mt Carmel is reachable --
our-lady-of-ransom (24 September) is provably unreachable: 24 September
falling on a Saturday forces 1 September to a Thursday, which by
construction makes 24 September the September Ember Saturday, Class2,
every time, not a sampled coincidence.
Re-measured against the full pre-change binary: the original 75,853-day
blast radius is unchanged in total, splitting into 74,633 colour-only +
1,220 colour+comms (16-July Saturdays). Mutation-tested: exactly 3 new
tests redden, nothing else.
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RG 91 entry 27, "Officium sanctae Mariae in sabbato", sits in the Table
of Precedence between entry 26 (III-class vigils) and entry 28 (IV-class
ferias). Precedence_ef.band already routed a plain IV-class Saturday
feria to entry 27's own band value, but nothing in Temporal_ef.temporal
ever constructed the office itself, so an otherwise-unoccupied Saturday
still surfaced with a bare ferial slug and its season's ordinary colour.
Established from Caput IX of the Rubricae Generales, both photographic
scans and the electronic transcription, word for word (no
scan-vs-transcription conflict: RG 78/79 are General Rubrics prose, not
the Mass-propers body text the transcription is documented elsewhere as
missing almost all of):
"78. In sabbatis, in quibus occurrit Officium de feria IV classis, fit
de sancta Maria in sabbato.
79. Officium sanctae Mariae in sabbato incipit a Matutino et explicit
post Nonam."
RG 78's own protasis IS "otherwise unoccupied IV-class Saturday" --
every Saturday whose temporal candidate would otherwise be Class4,
across every season that rank reaches (Christmastide, Septuagesima,
Time after Epiphany, Time after Pentecost, ordinary Paschaltide).
Nothing else was needed to decide "otherwise unoccupied": band's own
entry-27 branch already reads rank/weekday on the temporal candidate
unconditionally and only wins the day when nothing outranks it -- RG
78's own condition, decided by the existing occurrence machinery.
Colour is white, unconditionally, per RG 120(b) ("Adhibetur color albus
in Officio et Missa de festis: ... b) B. Mariae Virg."), not RG 119/127/
128's seasonal rules -- this office is never "de Tempore" for colour
purposes, so it overrides the season's own violet/green.
The slug is deliberately left UNCHANGED (reused from whatever the
generic <season>-<week>-<weekday> ferial fallback would already have
produced), for two independent reasons: it matches the Sacred Triduum's
own precedent (identified structurally, off rank/weekday, never off the
slug), and a bespoke uniform slug would have broken
Colitur_kernel.Validate's own slug-uniqueness-per-liturgical-year
invariant, sighted zero times before this task -- confirmed directly by
writing it that way first and watching the landmark-years test fail.
Subject is tagged Bvm (currently inert for precedence -- only Lord is
ever read by band/disposition/admit) and the name is the Latin
"Officium sanctae Mariae in sabbato" (RG 91 entry 27's own table title
and RG 79's own heading), deliberately not English, the same
zero-circularity discipline Holy Family/Holy Name/the Sacred Triduum
already established.
The I-V numbered "Missae de sancta Maria in sabbato" (both scans) are a
Mass-propers selection detail (RG 309(a): "iuxta temporum diversitatem")
governing which readings/texts are said, not which office is kept --
colitur computes no citations yet (Plan 4), so this is deliberately not
modelled here.
Two pre-existing tests needed correction, not because they were wrong
before, but because RG 78 genuinely changes their dates' own facts: a
Saturday inside the Holy Name of Jesus window (3 January) and two
Saturdays inside christmastide_feria_slug's own "-0-"/"-2-" stretches
(26 December, 10 January) are all otherwise-unoccupied Class4 Saturdays,
so they now legitimately carry the BVM office instead of staying a bare
Temporal-subject feria.
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Two corrections from the fix-round review, both to the record.
"Sabbato Sancto" is attested zero times in either photographic scan. The
scans print SABBATO SANCTO as the heading (once) and "Sabbato sancto" as
the running header (28x and 30x); the shipped casing appears only in the
electronic transcription's table of contents -- the source this
project's own methodology rule deprecates -- while the comment beside it
called the value "both photographic scans, word for word". Recased to
the running-header form, which is the convention the other three Latin
names in the file already follow, with a source note recording the
count. Third source-fidelity slip this week, and the first where the
wrong value came from the deprecated source itself.
The Major Litanies deferral was recorded with two false blockers. It
claimed a kernel signature extension was needed to suppress the feast in
transfer years: admit already takes ~temporal and disposition already
takes ~winner, both carrying the Easter office on 25 April, so a
rite-local slug test does it with zero kernel surface. And it implied
Easter Monday is unmarkable: ef-easter-1-monday occurs exactly 8417
times in 8417 years, as reliable as ef-easter-sunday. So the guarded
build -- never scored -- is a strict improvement, 8223 years newly
correct against 194 unchanged, and "worse than the gap" was true only of
the unguarded one.
Deferring is still right, for a reason nobody had found: 25 April is St
Mark, II class, so under RG 111(c) a privileged Litanies commemoration
would displace the day's existing ordinary commemoration in ~97.7% of
years -- an unmeasured blast radius through layers 3 and 4. That
measurement is the prerequisite. The 194 figure is exact and reproduces.
Also corrects a subject-audit list that named five months for six
entries, omitting the Precious Blood on 1 July.
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Holy Thursday, Good Friday and Holy Saturday resolved to the generic
Passiontide ferial slugs with no distinct identity of their own -- rank
and colour were already correct (RG 91 entry 2; Holy Thursday's white
per RG 128(b)/RG 122), only Celebration.names/subject were missing.
Keeps the slug (RG 91 entry 2 is identified structurally, off rank and
Easter offset, by Precedence_ef.band -- never off the slug -- so
renaming it would touch precedence for no reason and break the lectio
differential's own slug mapping for these three lectionary keys, the
same reasoning already given for Holy Family/Holy Name). Carries the
identity in Celebration.names instead, the same treatment those two
established: Latin, not English, to avoid reading the oracle this axis
is compared against.
Names sourced from both photographic scans, word for word, corroborated
by the electronic transcription's own table-of-contents-style listing at
the identical three headings (three-way agreement, nothing to
adjudicate): "Feria V in Cena Domini" (Holy Thursday), "Feria VI in
Passione et Morte Domini" (Good Friday -- not the transcription's own
informal "Feria VI Parasceve" used in passing elsewhere), "Sabbato
Sancto" (Holy Saturday).
Also tags subject = Lord, going further than Holy Family/Holy Name
strictly required (they needed it only because band's entry 14 reads
subject to outrank a colliding fixed feast; entry 2 here needs no such
thing). Safe: disposition's RG 112(a) branch only fires when both sides
of an occurrence are tagged Lord, and no Lord-subject sanctoral entry
has a fixed civil date inside Holy Week's own movable range; any Class1
sanctoral entry landing there (e.g. a transferred Annunciation) reaches
disposition's earlier, subject-blind Transfer branch first regardless.
Verified against the full 1583-9999 domain: zero
observed/commemorations/transferred_* difference traceable to the tag.
test_golden.ml's describe gains a name_la field alongside subject, for
the same reason subject was added: a names-only change is otherwise
invisible to every pin whose rank/colour/slug are already correct (this
task's own catalogued vacuity flavour #1). Six existing pins move from
subject=temporal to subject=lord (the three Easter-extreme Holy Saturday
pins, 2016's Good Friday, and the 2026 Holy Thursday/Good Friday pair);
the rest gain name_la=- by construction (no other temporal-cycle
candidate carries a name yet).
Mutation-tested: reverting temporal_ef.ml alone (keeping the tests)
reddens the new Rite_ef unit test plus five golden pins across two
independent layers.
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RG 17(a): "festum Ss.mi Nominis Iesu, celebrandum dominica quae occurrit
a die 2 ad 5 ianuarii (secus die 2 ianuarii)" -- both photographic scans,
confirmed on the calendarium's own January table and the Mass propers'
own heading. Two defects closed together, since they interact through
RG 91 entry 14/RG 16(a):
1. The Sunday shape (2-5 January) now tags subject = Lord, matching
RG 91 entry 14 ("Festa Domini II classis") -- previously subject =
Temporal, the same defect shape Holy Family had before it.
2. The fallback (RG 17(a)'s own "secus die 2 ianuarii", the calendarium's
"vel, ea deficiente, die 2 ianuarii") is now built: 2 January carries
the feast whenever no Sunday falls 2-5 January that year. Before this
fix colitur emitted no Holy Name office at all in such a year -- a
real II-class feast simply missing, on 3,619 of 8,417 years in the
domain (43%; 20 of the 46 years 2005-2050, independently re-derived
against `date -d`).
Both shapes band identically at RG 91 entry 14's MOVABLE half
(Precedence_ef.entry_14_movable_band) -- one feast, not two differently
classified ones, per the Mass propers' own single heading covering both
dates. No live collision exists in the current sanctoral data (nothing
fixed-date falls 2-5 January besides a Commemoration_only entry on 5
Jan), so the RG 16(a)/RG 112(a) interaction is proved with synthetic
precedence-level fixtures mirroring Holy Family's own precedent, not a
live-data regression. One asymmetry the synthetic tests found and kept
honest rather than forced: a losing Holy-Name-Sunday is privileged
(RG 109(a), "of a Sunday") and survives RG 111(a)'s cap; a losing
Holy-Name-fallback is not (2 January is not a Sunday, and no other
RG 109(a)-(f) category applies to it), so it gets no commemoration at
all if ever outranked -- both individually correct readings of RG 109/111's
closed lists.
Golden pins follow the brief's own vacuity warning: the Sunday shape
already emitted the right slug/rank/colour before this fix (an ordinary
Sunday and Holy Name coincide on those fields), so its pin asserts
subject explicitly rather than pinning the whole line uncritically; the
fallback pin (2029-01-02) is the one with teeth against the larger
defect, reddening on slug/rank/subject together if reverted.
Mutation-tested: each half of the fix reverted separately reddens
exactly its own tests (Sunday subject: the dedicated unit test, the
golden pin's subject field, one precedence end-to-end test; fallback:
the fallback unit/anchor/golden tests, the new C16 differential count,
and both shapes of the precedence end-to-end tests) and nothing else.
Adds data/ef/expected-divergences.sexp's C16 (lectio has no fallback for
this window at all) -- the lectio differential's own count, independently
re-derived against `date -d` for the fixture's 2005-2050 span, not
transcribed from the domain-wide figure. The missalemeum oracle window
(2026-2027) exercises only the Sunday shape and needed no new entry:
subject is not one of its compared fields, and both years' rows already
corroborate the Sunday-shape ranking (missalemeum's own 2026-01-04 and
2027-01-03 rows: rank 2, white, title "Holy Name of Jesus").
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test_holy_family_anchor_present_and_erosion_is_caught built its
"eroded" list by filtering the exact pair it then asserted was
absent -- removing an element and checking it is gone proves
List.filter works, not that any detector caught anything. Borrowed
the name of test_anchors_erosion_is_caught, which uses a genuine
one: missing_from_anchors, called with an "expected" set sourced
independently of T.anchors (named_slugs_for_year, via T.named).
Reworked to match that shape: the expected slug is now sourced from
T.sunday_slug (season/weekday logic, a different function entirely
from T.anchors's own hand-typed string), and both the presence and
erosion checks reuse the real missing_from_anchors detector instead
of a bespoke, self-referential one.
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On 7,197 of the 8,417 days Holy Family occurs (every year that
isn't the 13-January collision), every emitted byte was identical to
the pre-change binary -- subject appeared in no output path the CLI
or any test read. Celebration.make already takes ?names, defaulting
to empty, and Temporal_ef.build never passed it.
build now takes an optional ?names, set only on Holy Family's own
branch: a LATIN name, not English. The oracle's own observed-identity
axis (test_oracle.ml) reads only `en`, so this is deliberately
invisible to it -- an English name here would mean reading
missalemeum's own title text, the oracle this exact axis is compared
against, to decide colitur's "ground truth" name: the "expected value
promoted from actual output" vacuity flavour this project's review
process watches for. Latin has no such circularity: the calendarium's
own January table and the Mass propers' own heading, both
photographic scans, word for word, "Sanctae Familiae Iesu, Mariae,
Ioseph" -- the same genitive-title convention test_names.ml's own
worked example already uses for Easter ("Dominica Resurrectionis").
Every other temporal-cycle candidate, including the neighbouring
Sundays, still carries no name of any kind -- a targeted addition for
the one day this task built, not a claim that the general gap
(register's own open item on Holy Name of Jesus, RG 17(a)) is closed.
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RG 17(b), verified against both photographic scans (missale-romanum-
1962.pdf and "Missale Romanum 1962_text.pdf" -- the electronic
transcription carries the same paragraph, so this one is not itself
a transcription-vs-scan divergence): the Holy Family of Jesus, Mary
and Joseph is celebrated on the first Sunday after Epiphany, II
class, EVERY year, taking the Sunday's own place "cum omnibus
iuribus et privilegiis" -- the same formula RG 16(a) already uses.
The slug, rank and colour temporal_ef.ml already computed for that
Sunday (ef-time-after-epiphany-sunday-1, Class2, white) turn out to
be exactly right by coincidence -- an ordinary, unnamed Sunday and
Holy Family share both. The only field that was silently wrong is
subject: always Temporal before this, when RG 91 entry 14 ("Festa
Domini II classis, primum mobilia, deinde fixa") calls Holy Family a
movable Feast of the Lord. temporal's build now takes an optional
~subject, applied only on Holy Family's own date -- every other
Sunday, including the still-unbuilt Holy Name of Jesus (RG 17(a)),
is unaffected.
RG 17(b)'s window (7-13 January) can never be empty of a Sunday --
sunday_on_or_before(6 Jan) + 7 always lands in [7, 13] regardless of
6 January's weekday -- unlike RG 17(a)'s Holy Name (2-5 January, CAN
be empty), whose calendarium entry carries an explicit "vel ea
deficiente, die 2 ianuarii" fallback right next to Holy Family's own,
fallback-free one. No fallback needed or built.
Added to anchors (holy_family_sunday is independently computed, not
routed through named -- see temporal_ef.ml's own comment on why) and
to its own dedicated anchor/erosion test in test_temporal_ef.ml,
kept separate from the generic named-days coverage test since this
genuinely isn't one of named's own outputs.
Does not yet touch precedence: band still has no notion of a movable
Class2 Lord feast (entry 14 gates on sanctoral origin only), so on
the seven years 13 January is itself Holy Family's date (2008, 2013,
2019, 2030, 2036, 2041, 2047), the fixed Commemoration of the Baptism
of the Lord still wins the day exactly as before this commit -- the
next commit fixes the ordering RG 91 entry 14's own text states
("primum mobilia, deinde fixa").
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The guard added under Plan 2's carried item 5 only scanned a +/-window of
dates around Easter, so it caught erosion of an Easter-relative anchor but
missed a fixed-date one entirely: deleting ("ef-nativity", ...),
("ef-epiphany", ...) or ("ef-christ-the-king", ...) from temporal_ef.ml's
anchors list left the whole suite green. Item 5 -- the item this guard
exists to satisfy -- was therefore only half-closed while being reported
as closed, and the least-covered anchor was exactly the one with the
weakest citation (Christ the King's last-Sunday-of-October placement,
oracle-backed but not yet primary-verified as of this commit).
Widened the scan from an Easter-centred window to the whole civil year:
named only ever answers Some for its ~20 genuinely proper/named days, so
scanning every day of the year is no more likely to pick up an ordinary
week's slug by accident than the narrower window was -- it is simply no
longer selective about which KIND of named day it notices. Renamed
easter_relative_named_slugs to named_slugs_for_year and the covering test
to test_anchors_cover_all_named_days accordingly; broadened the negative
fixture (test_anchors_erosion_is_caught) to strike an Easter-relative and
a fixed-date anchor together.
Verified by deleting each of the three previously-unguarded anchors in
turn (locally, reverted after each), rebuilding and re-running the suite:
delete ef-nativity: Received: `["ef-nativity"]'
delete ef-epiphany: Received: `["ef-epiphany"]'
delete ef-christ-the-king: Received: `["ef-christ-the-king"]'
each against the same assertion:
ASSERT 1598: every named slug is restated in anchors
FAIL 1598: every named slug is restated in anchors
Expected: `[]'
All three reversions applied only to temporal_ef.ml (not committed); the
tree is unchanged there. Test count unchanged (259); no behaviour change.
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Three carried items from Plan 2's parked rulings, closed:
1. Slug uniqueness moves from a 200-sample QCheck property scoped to
one rite (test_temporal_ef.ml) into Validate's own "slugs" check, so
every consumer gets it. The resumed-Sunday exemption that property
carried is dropped, not weakened elsewhere: Plan 2 verified zero
duplicate slugs domain-wide (all 8 416 years), and by construction a
resumed Sunday only ever backfills a week number Septuagesima cut
short that same liturgical year, so it can never repeat a number
that year's own January Sundays already used. The now-redundant
property and its is_resumable_sunday_slug helper are removed from
test_temporal_ef.ml; test_validate.ml's own domain-wide property
covers the same ground for every consumer.
2. The anchors-erosion guard (Plan 2: deleting entries from a rite's
anchors list left the whole suite green) is implemented, but not in
Validate. Which of a rite's named days are Easter-derived is
knowledge only the rite's own `named` function has; Rite.t
deliberately exposes only `temporal` and `anchors`, never `named`,
so a rite-agnostic Validate has no ground truth to check anchors'
completeness against. Hardcoding an Easter offset, or even Easter
itself, would smuggle Western/Gregorian-specific knowledge into code
meant to also serve a future Julian-reckoning rite; rediscovering
"named-ness" structurally from `temporal` alone is unsound for EF,
since most ordinary Sunday/feria slugs from Septuagesima onward are
also constant-offset-from-Easter by construction. The guard is
therefore EF-specific and lives in test_temporal_ef.ml, discovering
the Easter-derived slug set mechanically (scanning a window around
Easter and keeping whatever `named` answers Some for) rather than
hand-copying either named's or anchors' own offset list, then
asserting completeness against the real anchors for the domain's
Easter extremes (1598, 1666) plus an ordinary year. A negative
fixture proves the guard has teeth, matching Plan 2's exact
regression (anchors missing "ef-ascension" reports it, and only it,
as missing).
3. test_validate.ml's extreme_years comment claimed 1818/2038; verified
against Computus.gregorian_easter directly, the domain's actual
Easter extremes (1583..2500) are 1598/1666. Corrected.
Verification: the full 1583..9999 domain sweep (233 tests via dune
test's 200-sample default, plus a manual full sweep) reports exactly
one failure -- the known, already-pinned year-9999 season-truncation
case -- and zero occurrences of the new "slugs" check anywhere in the
domain. Deleting "ef-ascension" from the real anchors list (reproducing
Plan 2's regression directly) is caught immediately by the new EF test
and, confirmed empirically, invisible to Validate's own full property
sweep -- direct evidence for why item 2 cannot live in Validate.
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Two correctness bugs in Temporal_ef, both only visible across many
years, not a single point assertion:
1. Duplicate slugs within one liturgical year. Christmastide has no
numbered weeks, so the ferial fallback's <season>-<week>-<weekday>
scheme collapsed every feria in it to literal week "0". Since
colitur's Christmastide runs 25 Dec - 13 Jan (RG 72-73, a deliberate
divergence from lectio), the same weekday recurs across that span
and the keys collided (e.g. ef-christmas-0-saturday on three
different dates). Fixed with a dedicated christmastide_feria_slug
that splits the span into four sub-stretches, prioritising
compatibility with lectio's own keys wherever lectio has one:
- 26-28 Dec keeps lectio's existing ef-christmas-0-<weekday>.
- 2-5 Jan becomes ef-christmas-1-<weekday> -- lectio collapses
this indistinguishably into the same key as the stretch above,
so there is nothing to preserve; a colitur-only lectionary gap.
- 7-13 Jan splits at the actual first-Sunday-after-Epiphany
origin: on/after it, this is genuinely week 1 of Time after
Epiphany and takes lectio's own ef-time-after-epiphany-1-<weekday>
(which also can't collide with that season's own later week-1
ferias, since it's the same computation). Before it (0-6 days,
whenever Epiphany doesn't fall on a Saturday), a first attempt
at labelling this "week 1" too, matching a literal reading of
lectio's behaviour, was verified empirically (a throwaway sweep
of the full 1583..9998 domain) to reproduce duplicates in most
years -- so this remainder is its own ef-christmas-2-<weekday>,
a further colitur-only gap.
Verified with the same throwaway sweep: zero duplicate slugs across
1583..9998 after the fix.
2. named's week field was set by hand on some branches (Passion/Palm
Sunday, Easter, Low Sunday, Pentecost and its Vigil, Christ the
King) and left at None on others (Ascension and its Vigil, Corpus
Christi, Sacred Heart) even though all of them sit inside a
numbered season run. named no longer carries a week at all --
temporal now calls week itself for every day, named or not, so "a
named day inside a run carries that run's week" holds by
construction rather than by remembering to set it on each branch.
temporal.mli's week field doc is reworded to state the actual rule.
Covering tests: point assertions for all four Christmastide
sub-stretches; a QCheck property scanning random years for any
duplicate slug within a liturgical year (excluding the deliberate
resumed-Sunday reuse); point assertions for the four previously-None
days now carrying their week (first to fail without the fix: Ascension
Vigil, expected Some 6, got None); a QCheck property asserting
temporal's week equals week for every day of the year, replacing a
prior property whose fallback made it structurally incapable of
detecting an omitted week.
Also: cite RG 91 e18 for the September/Advent Ember days matching
lectio and flag the Lent/Whitsun Ember and Rogation slugs as
colitur-only lectionary gaps inline, matching the existing
Nativity-vigil/octave-day convention; cite RG 117/123/127/128/131 for
season colours and Gaudete/Laetare rose; drop the unreachable
Passiontide arm from the Sunday-rank match (Passiontide has only two
Sundays and both are already named above, so no Passiontide Sunday
ever reaches that fallback).
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named hardcoded week = None for ef-pentecost-vigil, ef-pentecost and
ef-christ-the-king, unlike the five sibling named Sundays (Easter, Low
Sunday, Passion Sunday, Palm Sunday, Trinity), which already carry the
explicit week number that week computes for the same date. Because these
three sit inside a season run rather than at a run boundary, the omission let
the week number jump on the following Monday without an intervening Sunday
marking the change -- breaking week continuity in every single year in the
domain.
This was found by the new Validate invariant harness (Task 14), which
flagged exactly two failures in every one of the 8416 years 1583..9998, both
on the Monday after one of these days. Season contiguity itself was clean
across the whole domain; only week numbering was affected.
Pentecost and its Vigil are fixed Easter offsets, so they take the literal
values (7 and 8) that week already computes for them. Christ the King's date
varies by year, so the same expression week evaluates is inlined instead,
since week is defined later in the file and cannot be called from named.
Added a general property test, prop_named_week_agrees_with_week, checking
across 200 random years that wherever named gives an explicit week, it
matches what week independently computes for that date -- covering all
sibling entries, not just the three fixed here, so the same drift cannot
silently reappear in a future addition to named.
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Ferial ranks per RG 91: I class in Holy Week and the privileged octaves
(entries 7, 10), II class for Advent 17-23 and the Ember days (entry 18), III
class for Advent to 16 December and Lent/Passiontide (entries 22, 25), IV class
per annum (entry 28). Two further divergences from lectio, both from the table:
Advent 17-23 are II class, and the Lenten Ember days are II class rather than
ordinary Lenten ferias. Rogations (RG 80/87) exist at all, which lectio does
not compute. Gaudete and Laetare are rose.
Two corrections against the primary source beyond the task brief's draft.
Entry 7 (verified against the Latin: "feria IV cinerum et II, III et IV
Hebdomadae sanctae") covers only Ash Wednesday and Monday-Wednesday of Holy
Week; Thursday-Saturday are the Sacred Triduum, entry 2, cited separately.
Rogation Monday and Tuesday keep the ordinary ferial rank of their season
(RG 88: "de Litaniis minoribus nihil fit in Officio") rather than a fixed
class, since no RG 91 entry ranks them specially.
A module-type constraint proves Temporal_ef satisfies the kernel RITE contract.
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Task 12 review: add a permanent regression test for floor_div's negative
branch (Ash Wednesday, 4 days before the Lent I origin -- the only date in
the system where it fires), and stop sunday_slug from independently
recomputing the Pentecost-relative week number that week already computes.
A cross-check test pins the two together before the refactor and continues
to guard against future duplication.
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Week origins are Sundays, so week numbers are constant Sunday-to-Saturday; the
origin is season-specific, which is why Validate must not assume a run starts
at 1. When Easter is early the surplus Sundays after Pentecost resume the
Sundays after Epiphany that Septuagesima cut short, and the last Sunday before
Advent always keeps the 24th (Last) Mass.
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The I-class feasts of the Lord (RG 91 entries 1-3), the Nativity, Ascension
and Pentecost vigils (RG 28-34), and the days within the Octave of the
Nativity (RG 64-70). Christ the King is the last Sunday of October per the
1960 calendar, not the OF's last Sunday before Advent.
Rogation Wednesday coincides with the Ascension vigil; with no precedence
framework until Plan 3, temporal emits the higher-ranked vigil.
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Christmas Time runs to 13 January inclusive (RG 72-73) and time after Epiphany
opens on 14 January (RG 77), diverging from lectio, which starts
time-after-epiphany at 6 January. Holy Saturday stays in Passiontide: the
Easter Vigil is a night Mass, and a per-day calendar assigns a date by the
season governing its day-hours.
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Eight seasons in canonical liturgical-year order, each carrying its RG
citation, and the four classes. season_slug_word is deliberately distinct from
season_to_string: slugs are lectionary keys adopted verbatim from lectio,
which calls Paschaltide 'easter' and Christmastide 'christmas'.
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