Oh! I know something that can mess you up even more!

For those who don’t know what this book’s about:

The textbook “Principles of Mathematical Analysis”, by Walter Rudin, is considered a “classic” text on real analysis, the subject that uses rigorous deductive logic to put calculus on a firm foundation.

This book is lovingly called “Baby Rudin”, because it’s considered an entry-level book that undergraduates can take in their first 3 years, and Rubin also wrote 2 more books that are a large extension of the basic ideas in Basic Rudin, as in, more advanced, covering topics like Measure Theory (onr way this is useful is as a framework to have more ways to deal with integrals) and Lesbesgue Integration (and this is an introductory example and application of Measure Theory) in “Papa Rudin”, and Functional Analysis in “Grandpa Rudin” (fancy phrase of the day: infinite-dimensional spaces!).

Please don’t ask further though. Many tears have been shed. Many trees were also harmed in the process (from all the papers that were used for sketching out ideas or proofs).

Ahh yes. Cut my teeth on the 5th edition of that book.