# Basic Analysis: Introduction to Real Analysis

- By: Jirí Lebl
- Publisher: Jirí Lebl
- Source: [Open Textbook Library](https://open.umn.edu/opentextbooks/textbooks/basic-analysis-introduction-to-real-analysis)
- Licence: Attribution-NonCommercial-ShareAlike
- PDF: https://www.jirka.org/ra/
- Online: https://www.jirka.org/ra/html/frontmatter-1.html
- LaTeX: https://github.com/jirilebl/ra

This free online textbook (e-book in webspeak) is a one semester course in basic analysis. This book started its life as my lecture notes for Math 444 at the University of Illinois at Urbana-Champaign (UIUC) in the fall semester of 2009, and was later enhanced to teach Math 521 at University of Wisconsin-Madison (UW-Madison). A prerequisite for the course is a basic proof course. It should be possible to use the book for both a basic course for students who do not necessarily wish to go to graduate school, but also as a first semester of a more advanced course that also covers topics such as metric spaces.