> For the complete documentation index, see [llms.txt](https://cs61b-2.gitbook.io/cs61b-textbook-2025/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cs61b-2.gitbook.io/cs61b-textbook-2025/11.-inheritance-iii-subtype-polymorphism-comparators-comparable.md).

# 11. There is no chapter 11.