Lehmer's Theorem


Title: Lehmer's Theorem
Authors: Simon Wimmer and Lars Noschinski
Submission date: 2013-07-22
Abstract: In 1927, Lehmer presented criterions for primality, based on the converse of Fermat's litte theorem. This work formalizes the second criterion from Lehmer's paper, a necessary and sufficient condition for primality.

As a side product we formalize some properties of Euler's phi-function, the notion of the order of an element of a group, and the cyclicity of the multiplicative group of a finite field.

  author  = {Simon Wimmer and Lars Noschinski},
  title   = {Lehmer's Theorem},
  journal = {Archive of Formal Proofs},
  month   = jul,
  year    = 2013,
  note    = {\url{http://isa-afp.org/entries/Lehmer.shtml},
            Formal proof development},
  ISSN    = {2150-914x},
License: BSD License
Used by: Pratt_Certificate