Original NOE-IDL lesson text, original figures and this build script: CC0 1.0 Universal.
https://creativecommons.org/publicdomain/zero/1.0/legalcode

Prerequisite source bodies and attribution are preserved as private snapshots; no public clearance or global proof closure is asserted.
Their declared source notices remain in each source body. Linked external works are not incorporated or relicensed.

AG-CA prerequisite components use the per-lesson terms in course.json: independently authored CC0 text and genuine incorporated Stacks text under GFDL 1.2 or later.
Full component terms: prerequisites/AG-CA/CC0-1.0.txt and prerequisites/AG-CA/COPYING-GFDL-1.2.txt.

Historical English readings: source-course/historical/LICENSE-English.txt and provenance.json. Original works and third-party materials are not relicensed.

MathJax rendering software: Apache 2.0, runtime/mathjax/LICENSE. MathJax fonts retain their own terms in runtime/mathjax/FONT-LICENSES.txt.
Rendered DejaVu glyphs retain the notice in assets/LICENSE_DEJAVU.txt.