Introduction to Real Analysis

Rutgers Math 311H, Fall 2025
Professor: Alex Kontorovich

Course Description: The primary aim of this course is to teach you the rigorous foundations of calculus — foundations which were omitted in earlier calculus courses. We will give precise definitions of the concept of a limit and of such concepts as the continuity and differentiability of functions, and will prove some of the many consequences which may be deduced from these definitions. A secondary aim is to improve your skills in reading and understanding mathematics written by others and in writing precise definitions and rigorous proofs of your own.

More information: is available on the Course Info Page.

Course Resources

Week Lecture 1 Video Lecture 2 Video Topics/Content/Notes/Other
Week 1, 09/02, 09/05 Lecture 1 Notes
Newton, Leibniz, Cauchy, Fourier,
Lean tactics: exact, rfl, rewrite,
ring_nf, use, intro,
specialize, choose

Lecture 2 Notes
Newton's computation of π
Formal definition of the limit of a sequence
Week 2, 09/09, 09/12
Week 3, 09/16, 09/19
Week 4, 09/23, 09/26 MIDTERM 1
Week 5, 09/30, 10/03
Week 6, 10/07, 10/10
Week 7, 10/14, 10/17
Week 8, 10/21, 10/24
Week 9, 10/28, 10/31 MIDTERM II
Week 10, 11/04, 11/07
Week 11, 11/11, 11/14
Week 12, 11/18, 11/21
Week 13, WED 11/26 (FRI schedule) HAPPY THANKSGIVING!
Week 14, 12/02, 12/05
Week 15, 12/09 FINAL REVIEW