Elamur Groupantscorpus-register-counting
The groupant beside world/src/register.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.
Facts
Implementation material. A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.
Components
| component | label | where |
|---|---|---|
| approximant | partial | Forward |
| ast | partial | ../syntax.json |
| cost | partial | Cost |
| descriptant | present | model.md |
| invariant | partial | Invariant |
| tests | bounded native checks | ../model.md#tests |
Obernants
The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.
| id | type | label | where |
|---|---|---|---|
nonbehavior | behavior_complement | partial source derived model | nonbehavior |
antecedents | reverse_reconstruction | partial source derived model | antecedents |
byte-length | admission_partition | partial source derived model | byte-length |
additivity | conservation_relation | partial source derived model | additivity |
read-skip | failure_projection | partial source derived model | read-skip |
Model text
descriptant
corpus-register-counting
counts and count_body, with events::book_body dependency.
Forward
Fold readable bodies into additive lowercase histograms and totals. Alphabetic token boundaries precede byte-length admission.
Invariant
For count_body, the total increment equals the sum of histogram increments without overflow. counts starts from zero, so returned total equals sum counts. Each increment represents one original alphabetic run with UTF-8 byte length > 1, keyed by its Unicode lowercase result. Admission precedes lowercase; combining characters may appear afterward. Token order is discarded.
Cost
O(bytes+tokens log V), storage O(V+largest file).
Composition
This fragment has no children. counts reads each path, applies events::book_body and accumulates count_body deltas. Failed reads add nothing. The root passes maps/totals to ranking; this fragment computes no z score or row order.
Epoch memory
2026-10-30. Native exact histograms confirm ASCII singleton exclusion, multibyte-letter admission and lowercase expansion. A second fixture checks marker stripping and separate-body addition. Review removed inherited event-role and ranking invariants. No executable approximation/error-cap claim.
Gaps
Syntax is source-bound and partial: macro expansion, names/types, cfg evaluation and external modules absent. Native fixtures exercise pure helpers and body slicing. Filesystem errors, invalid UTF-8 reads, formatted nonfinite rates and overflow remain unexecuted; large-count behavior has one targeted witness, not exhaustive coverage. No parser/annotator, sentence-splitting, live corpus, teacher or GPU execution is involved.
catalog
corpus-register-counting typed models
Subject: source hash in manifest, epoch 2026-10-30. Scope: counts and count_body, with events::book_body dependency.. Domain: terminating Rust calls without integer overflow, narrowed below. Models are partial source-derived relations, not proofs. Complement is an inner bound in the stated input/output universe. Reconstruction retains all compatible antecedents, not a unique inverse. Oracle status is explicit below; tests.md records executed coverage.
nonbehavior
Type: behavior_complement.
U=(body,delta,total). Excludes digit-bearing admitted token and total unequal to sum deltas. Oracle native Unicode/count fixture.
antecedents
Type: reverse_reconstruction.
Histogram admits all token sequences whose lowercase classes have exact multiplicities, plus discarded singleton ASCII and separators that do not merge tokens. Oracle proposed permutations.
byte-length
Type: admission_partition.
Single multibyte alphabetic scalars pass; ASCII singleton letters fail. Lowercase expansion happens after test. Oracle é/É/İ/A fixture.
additivity
Type: conservation_relation.
Separate bodies A then B give delta(A)+delta(B). Byte concatenation needs separator or a token can merge. Oracle native two-body fold.
read-skip
Type: failure_projection.
Unreadable/non-UTF-8 path contributes zero, indistinguishable from empty body in count output. Attempted/read book counts unrecoverable. Oracle source-only.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/world/src/register.rs.groupant/counting.groupant/