# Page Not Found

The URL `roll-in-to-rust` does not exist.

You might be looking for one of these pages:
- [Функторы](https://stas-norochevskiy.gitbook.io/cat-theor/functor.md)
- [Категория в программировании](https://stas-norochevskiy.gitbook.io/cat-theor/category_in_programming.md)
- [Функция как функтор](https://stas-norochevskiy.gitbook.io/cat-theor/function_as_functor.md)
- [Дуальность](https://stas-norochevskiy.gitbook.io/cat-theor/duality.md)
- [Произведение и ко-произведение](https://stas-norochevskiy.gitbook.io/cat-theor/product.md)

## How to find the correct page

1. **Ask a question**: /cat-theor/sitemap.md?ask=<question> - Complete answer with sources
2. **Browse the full index**: [/cat-theor/sitemap.md](https://stas-norochevskiy.gitbook.io/cat-theor/sitemap.md) - Complete documentation index
3. **View the full content**: [/cat-theor/llms-full.txt](https://stas-norochevskiy.gitbook.io/cat-theor/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/cat-theor/functor.md`)
- Use `Accept: text/markdown` header for content negotiation