Elamur Groupantsworld-read-segmentation-admission
The groupant beside world/src/read.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 source model | forward |
| ast | partial | ../../syntax.json |
| composition | partial source model | parent-interaction |
| cost | partial source model | cost |
| descriptant | partial source model | epoch-memory |
| invariant | partial source model | invariant |
| tests | partial source model | checks |
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 |
|---|---|---|---|
world-read-segmentation-admission-behavior-complement | behavior_complement | partial source model | behavior-complement |
world-read-segmentation-admission-reverse-reconstruction | reverse_reconstruction | partial source model | reverse-reconstruction |
world-read-segmentation-admission-parent-interaction | composition_relation | partial source model | parent-interaction |
world-read-segmentation-admission-boundary | constraint_relation | partial source model | boundary |
world-read-segmentation-admission-information | information_projection | partial source model | information |
world-read-segmentation-admission-cost | resource_relation | partial source model | cost |
Model text
Wave34, 2026-10-31. Subject: world-read-segmentation-admission, current source SHA 80ef1f69d776dcb5cd03bf925cc5c01e827d7919495ccda17d785eb3de459857. Domain: one terminating supplied-input helper transition; valid indices, sufficient memory and finite strings/trees/worlds. Source-derived partial relations, not a verified universal theorem. All views below share this domain and exact manifest scope; specialized assumptions are stated locally. No executable percentage approximant is claimed.
forward
Take cur; if pending text has nonblank content append its whitespace-normalized paragraph; sum paragraph byte lengths, append (title, paragraphs) iff total>=200. cur is None after taking even when the story is rejected.
invariant
An empty cur cannot append output; total<200 cannot be admitted by this closure.
behavior-complement
An empty cur cannot append output; total<200 cannot be admitted by this closure.
reverse-reconstruction
For an appended story recover any whitespace variants of pending paragraph and existing normalized paragraphs with the same ordered strings and byte total>=200. Rejected cur may be absent or any subthreshold story; rejection loses title/content.
parent-interaction
This consuming flush is invoked before replacing heading state and at EOF; rejected state is not available to a later story.
boundary
Threshold is the sum without paragraph separators, not source byte count or Unicode character count.
information
Admission output still contains bracket paragraphs; later service deletion cannot retroactively change the admission decision.
cost
One pending-buffer tokenization and one paragraph-byte-length sum: O(buffer bytes + paragraph count), plus appended output allocation.
checks
Historical 180..220 byte oracle and admitted illustration plus short retained prose.
Exact selected native boundary: cargo test --offline --locked -p world --lib read::wave9_models::segmentation_threshold_and_service_filter -- --exact --test-threads=1. Repeated in debug and release; see the current file-level wave34 evidence and external native-receipts.json.
assurance
The behavior-complement is an inner exclusion hypothesis over admissible input/output pairs, derived from branch order; not the complement of an incomplete model of the entire file. Reverse reconstruction is the compatible antecedent relation, retaining every modeled ambiguity rather than a chosen inverse. Parent-interaction is a composition relation, boundary a constraint relation, information an information/state projection, and cost a resource relation. The named checks are finite falsifiers; unexecuted branches remain source-inspected gaps. No parser/model/teacher/corpus/frozen assessment was run.
epoch-memory
New child in wave34; no prior child renamed or counted. Parent historical wave8/wave9 evidence remains historical. Current raw receipts are in the external wave34 reasoning run; source syntax is partial, macros opaque, and no semantic AST or general proof is supplied.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/world/src/read.rs.groupant/segmentation.groupant/admission.groupant/