Real Analysis on Intervals - A. D. R. Choudary, Constantin P. Niculescu - Google Books

https://books.google.de/books?id=I8aPBQAAQBAJ&pg=PA59#v=onepage

The book targets undergraduate and postgraduate mathematics students and helps them develop a deep understanding of mathematical analysis. Designed as a first course in real analysis, it helps students learn how abstract mathematical analysis solves…