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

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# hot-state-delta

The groupant beside world/src/state.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 derived instance
- **source:** [`world/src/state.rs`](https://github.com/ElamurAI/mova-free/blob/main/world/src/state.rs)
- **source SHA-256:** `bfa67ac2b0312fd5…`
- **covers:** diff and apply only
- **part of:** [hot-state](https://md.groupants.elamur.ai/free/en/mova/world/src/state.rs.groupant/)
- **repository folder:** [`world/src/state.rs.groupant/delta.groupant`](https://github.com/ElamurAI/mova-free/tree/main/world/src/state.rs.groupant/delta.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 | `../model.md#model` |
| **ast** | partial | `../syntax.json` |
| **cost** | symbolic unmeasured | `../model.md#model` |
| **descriptant** | present | `../model.md#model` |
| **invariant** | finite checked | `../model.md#model` |
| **tests** | bounded evidence | `../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 finite checked | `../model.md#model` |
| `antecedents` | reverse_reconstruction | partial source derived finite checked | `../model.md#model` |
| `resource` | resource_preimage | partial source derived finite checked | `../model.md#model` |
| `loss` | information_loss | partial source derived finite checked | `../model.md#model` |
| `minimum_edits` | edit_optimality | partial source derived finite checked | `../model.md#model` |
| `cursor` | invariant_projection | partial source derived finite checked | `../model.md#model` |
| `cost` | cost_composition | partial source derived finite checked | `../model.md#model` |

## Model text