Sums of Two and Four Squares

 

Title: Sums of Two and Four Squares
Author: Roelof Oosterhuis
Submission date: 2007-08-12
Abstract: This document presents the mechanised proofs of the following results:
  • any prime number of the form 4m+1 can be written as the sum of two squares;
  • any natural number can be written as the sum of four squares
BibTeX:
@article{SumSquares-AFP,
  author  = {Roelof Oosterhuis},
  title   = {Sums of Two and Four Squares},
  journal = {Archive of Formal Proofs},
  month   = aug,
  year    = 2007,
  note    = {\url{http://isa-afp.org/entries/SumSquares.shtml},
            Formal proof development},
  ISSN    = {2150-914x},
}
License: BSD License