来源与致谢 / Attribution and acknowledgements

练习设计与排版 / Exercise design and layout

本课程练习册的部分练习设计与版式借鉴了 Polaris-Aeterna/loom-notes 的 LaTeX 模板（作者：北极甜虾 / Polaris），包括其中的主动回忆、填空、证明骨架与自主练习等设计思路。本课程按自身教学目标选择和调整这些设计，并非完整套用该模板，也不意味着全部练习题、解答或课程内容均来自该项目。各章节与题目已有的其他来源说明继续保留。

Parts of this course’s workbook exercise design and layout draw on the LaTeX template in Polaris-Aeterna/loom-notes, by 北极甜虾 (Polaris), including approaches to active recall, fill-in steps, proof skeletons, and independent practice. These designs are selectively adapted to this course’s learning goals; the template is not used in full. This credit does not mean that all exercises, answers, or course content originate from that project. Existing chapter-specific and exercise-specific source credits remain in place.

名称与许可范围 / Naming and license scope

本课程的配套材料统一称为“练习册 / Workbook”。Loom 是上游模板的名称，不是本课程的品牌。为保持原文、构建及历史证据可追溯，技术类名 loom.cls、部分旧源码路径、历史记录及未重编 PDF 中的原有术语继续保留。

The course companion is called the Workbook. Loom identifies the upstream template, not this course’s brand. Technical names such as loom.cls, selected legacy source paths, historical records, and terminology inside the unchanged PDFs are retained for traceability and compatibility.

上游代码与 skill 的许可说明见 保留的上游 LICENSE。该许可仅适用于其所覆盖的上游材料，不构成本课程整体的开源许可，也不替代其他来源的权利说明。

See the preserved upstream LICENSE for the class and skill. Its scope is the upstream material it covers; it does not license the entire course or replace the rights notices of other sources.

核对版本 / Reference revision: 290fa4042d33a7dd11f290eb39fba7f5d5b71369.

当前课程许可 / Current course licenses

本课程原创代码采用 MIT，原创教学内容采用 CC BY-SA 4.0，范围与例外见 LICENSE.md。这不改变上游许可或扩大作者对第三方内容的权利。The project’s own licensing is separate from the upstream Loom license and does not relicense third-party material.