---
title: "world-meanings-records — 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/records.groupant/"
---
Elamur: [Mova](https://md.mova.elamur.ai/free/en/) · [Dictionary](https://md.dictionary.elamur.ai/free/en/) · [Research](https://md.research.elamur.ai/free/en/) · **Groupants**

This page as HTML: <https://groupants.elamur.ai/free/en/mova/world/src/meanings.rs.groupant/records.groupant/>

# world-meanings-records

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:** TSV parsing and last-write projection (bytes 11373–12239)
- **part of:** [world-meanings](https://md.groupants.elamur.ai/free/en/mova/world/src/meanings.rs.groupant/)
- **repository folder:** [`world/src/meanings.rs.groupant/records.groupant`](https://github.com/ElamurAI/mova-free/tree/main/world/src/meanings.rs.groupant/records.groupant)
- **repository commit:** `855da7bd4a7b`

> **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-records-behavior-complement` | behavior_complement | partial source model | [behavior-complement](#behavior-complement) |
| `world-meanings-records-reverse-reconstruction` | reverse_reconstruction | partial source model | [reverse-reconstruction](#reverse-reconstruction) |
| `world-meanings-records-last-write` | state_transition | partial source model | [last-write](#last-write) |

## 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

Ignore lines starting '#'; split tabs, accept >=6 fields, lowercase first field, store empty date plus fields1..5. BTreeMap keeps last duplicate. Empty keys/fields not rejected when six fields exist.

### invariant

Sorted lowercase keys and six fields; no date acquisition. Projection is not full schema validation.

### cost

O(B+r log D) comparison-weighted parsing/map insertion; accepted strings stored.

### composition

improved supplies embedded bytes to improved_from. improved_dates returns empty map: parser performs no external date read.

### behavior-complement

Type: behavior_complement. Subject: world-meanings-records, 2026-10-30. Observation: one completed transition in the stated domain; effects included only where named. Status: partial source model. TSV/output universe: fewer than six fields cannot create row; fields after index5 cannot change stored record. Source-derived inner absence, finite fixtures.

### reverse-reconstruction

Type: reverse_reconstruction. Subject: world-meanings-records, 2026-10-30. Observation: one completed transition in the stated domain; effects included only where named. Status: partial source model. Comments, malformed rows, extra columns and overridden earlier rows form compatible antecedents. No unique raw file or edit chronology recoverable.

### last-write

Type: state_transition. Subject: world-meanings-records, 2026-10-30. Observation: one completed transition in the stated domain; effects included only where named. Status: partial source model. Accepted rows sharing lowercase k reduce by replacement. Word then WORD retains second record; tests compare all six fields and extra-column equality.

### 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.