# Methods & Mathematical Foundations

[Reading Notes](/notes/index.md) · [All public notes](/notes/all/index.md)

Probability, statistical inference, econometrics, and real analysis: concepts, results, and proof techniques.

Reading editions in preparation

Organized by subject, with course context and document type noted in each edition. Public editions preserve the full notes and their sources and open in Google Drive.

Content updated: 2026-09-26.