---
title: "world-meanings-operations — Mova code model"
description: "Mova code model of world/src/meanings.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/world/src/meanings.rs.groupant/operations.groupant/"
---
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# world-meanings-operations

The groupant beside world/src/meanings.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

- **kind:** groupant_fragment
- **status:** partial source bound model
- **source:** [`world/src/meanings.rs`](https://github.com/ElamurAI/mova-free/blob/main/world/src/meanings.rs)
- **source SHA-256:** `cf20349ad626caf3…`
- **covers:** Entry and operation projection (bytes 3043–7680)
- **part of:** [world-meanings](https://md.groupants.elamur.ai/free/en/mova/world/src/meanings.rs.groupant/)
- **repository folder:** [`world/src/meanings.rs.groupant/operations.groupant`](https://github.com/ElamurAI/mova-free/tree/main/world/src/meanings.rs.groupant/operations.groupant)
- **repository commit:** `48f2e6f74146`

> **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](#forward) |
| **ast** | partial | `../syntax.json` |
| **composition** | partial source model | [composition](#composition) |
| **cost** | partial source model | [cost](#cost) |
| **descriptant** | partial source model | [epoch-memory](#epoch-memory) |
| **invariant** | partial source model | [invariant](#invariant) |
| **tests** | partial source model | [checks](#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-meanings-operations-behavior-complement` | behavior_complement | partial source model | [behavior-complement](#behavior-complement) |
| `world-meanings-operations-reverse-reconstruction` | reverse_reconstruction | partial source model | [reverse-reconstruction](#reverse-reconstruction) |
| `world-meanings-operations-override-priority` | priority_relation | partial source model | [override-priority](#override-priority) |

## Model text


Scope: partial source-bound relations over the observations named below. Sufficient memory and terminating dependencies assumed. This is not a universal proof or an executable percentage-error approximant.

### forward

entry_word lowercases, prefers exact record, then ordered suffix candidates of length>2. op_of selects frozen map when MOVA_LIVEOPS absent and map nonempty; exact '0' blocks fallback then becomes None. Live mode may retry euphemism base when its own operation is absent. operation_record counts opening lesson cues plus STRONG pupil cues excluding entry word; unique positive plurality wins. facts_in appends qualified numbers/stemmed units. improved_from keeps last lowercase-key row.

### invariant

Tied/all-zero cue counts produce None. Fixed resources/configuration yield deterministic projection. Cache key is original spelling, distinct from lowercase entry identity. TSV dates empty; extra fields ignored; last duplicate wins.

### cost

k lexical tokens: O(k) fixed-table comparisons plus four-element sort. Dictionary suffix lookup O(log D) comparisons each. Fact normalization/lookup add upstream cost; cache retrieval clones output. TSV O(B+r log D) comparison-weighted with stored accepted strings.

### composition

op_in resolves records then calls extracted operation_record with unchanged cue logic. Synthetic tests enter only that helper, no static resource initialization.

### behavior-complement

Type: behavior_complement. Subject: world-meanings-operations, 2026-10-30. Observation: one completed transition in the stated domain; effects included only where named. Status: partial source model. Supplied-record universe: no lesson cues and no STRONG pupil cues implies None; a tie cannot emit an operation. Source-derived inner bound assumes fixed cue tables.

### reverse-reconstruction

Type: reverse_reconstruction. Subject: world-meanings-operations, 2026-10-30. Observation: one completed transition in the stated domain; effects included only where named. Status: partial source model. All count vectors with same unique winner share output; silence/ties share None. Definition text and suffix choice cannot be uniquely recovered.

### override-priority

Type: priority_relation. Subject: world-meanings-operations, 2026-10-30. Observation: one completed transition in the stated domain; effects included only where named. Status: partial source model. Exact entry precedes ies/es/s/ed/ed/d/ing/ing candidates; <=2-byte candidates excluded. Frozen '0' is found before filtering and forbids base retry. Routing source-inspected; supplied-record helper executed.

### checks

Native synthetic tests: cargo test -p world --lib meanings::wave9_models -- --test-threads=1. Test bodies define finite domains and fixtures. File-level evidence.md records repeated debug/release checks and a compiled negative control. No parser acquisition, teacher request, dictionary write or external assessment executed. Orchestration boundaries are source inspection only.

### epoch-memory

2026-10-30: first scoped model. Retain ambiguous fibers, source-order rules and distinction between lexical evidence and truth. Tests observe actual helpers; they do not substitute surrogates into production. Macro token bodies in partial syntax remain opaque. Future updates must rebind exact source bytes and retain these limits. No performance or task-quality improvement inferred.