By DORON ZEILBERGER
These are the handouts I gave out when I taught "Introduction to Number Theory", during the Fall 2013 semester.
Lecture 4: Representation of integers; Addition and Multiplication
Lecture 19: The Mobius Function and the Mobius Inversion Formula
Lecture 20: Quadratic residues and the law of Quadratic Reciprocity
Exam 2 Full Solutions to Exam 2 (by Josefina Mansour)
See this directory
See this directory