Elamur Groupantsworld-ans-ranking-eligibility
The groupant beside world/src/ans.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-ans-ranking-eligibility-behavior-complement | behavior_complement | partial source model | behavior-complement |
world-ans-ranking-eligibility-reverse-reconstruction | reverse_reconstruction | partial source model | reverse-reconstruction |
world-ans-ranking-eligibility-parent-interaction | composition_relation | partial source model | parent-interaction |
world-ans-ranking-eligibility-boundary | constraint_relation | partial source model | boundary |
world-ans-ranking-eligibility-information | information_projection | partial source model | information |
world-ans-ranking-eligibility-cost | resource_relation | partial source model | cost |
Model text
Wave34, 2026-10-31. Subject: world-ans-ranking-eligibility, current source SHA d8d94c891e347d2b640744b20c4662dc35064368e7d4d9253c4954b4297e1e09. 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
Compute score_words then reject missing required verb before participant/section bonuses. Role bonus is 3 matching requested role, 1 other role, -2 absent when who nonempty; section bonus 3/0.5/-1.5. Keep iff content>=min or who nonempty and total>=4; sort descending total, ascending sentence, stable encounter ties.
invariant
Section bonus alone cannot rescue content below min with empty who. Required missing verb excludes even otherwise rescued total. Total below 4 cannot rescue subthreshold content.
behavior-complement
Section bonus alone cannot rescue content below min with empty who. Required missing verb excludes even otherwise rescued total. Total below 4 cannot rescue subthreshold content.
reverse-reconstruction
Given ordered hits recover all worlds/query-role-section configurations satisfying each hit gate and ranking; absent events may fail either gate. Equal totals retain role/section/content tradeoffs, not unique evidence.
parent-interaction
find_events uses min=1 strict call first, retry min=2 without verb only when strict is empty and need_verb true. Nonempty strict suppresses relaxed alternatives.
boundary
Participant in other role plus own-section bonus gives exactly 4 even with zero content; requested role plus own-section gives 6.
information
Source assumes valid one-based event sentence index before section lookup; this is a panic boundary not an admission rejection.
cost
E ev_words materializations plus comparison work and O(E log E) sort; ev_words scans P/B entities per event. Strict retry may double materialization; no measured speedup.
checks
New zero-content role-rescue test plus existing section/tie/relaxed-fallback fixture; supplied synthetic World only.
Exact selected native boundary: cargo test --offline --locked -p world --lib ans::wave34_models::participant_rescue_requires_total_four -- --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/ans.rs.groupant/ranking.groupant/eligibility.groupant/