> For the complete documentation index, see [llms.txt](https://support.vlex.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.vlex.com/es-base-de-conocimiento-de-vlex-library/tipos-de-documento/key-number-topics.md).

# Temas de número clave

El sistema legal canadiense organiza su jurisprudencia utilizando un sistema de números para diferentes áreas del derecho. Puede navegar por el contenido de vLex usando el **Sistema de Números Clave del Libro de Derecho Marítimo (MLB)**; hay más de 100 temas y decenas de miles de subtemas.

Ir a **Explorar** y establezca su jurisdicción en Canadá. Entre las otras opciones, verá el **temas por número clave** menú. Selecciónelo para explorar el catálogo completo.

![](/files/3c4b3157b258d0f614206e70f2c9c38587692504)

{% hint style="info" %}
Combine los temas por número clave con alertas y reciba notificaciones sobre nueva jurisprudencia que encaje en cualquier categoría.
{% endhint %}

{% hint style="danger" %}
Los temas por número clave solo están disponibles hasta 2017.
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://support.vlex.com/es-base-de-conocimiento-de-vlex-library/tipos-de-documento/key-number-topics.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
