Dirichlet's Theorem
Given an Arithmetic Series of terms 
, for 
, 2, ..., the series contains an infinite number of Primesif 
and 
are Relatively Prime, i.e., 
. Dirichlet proved this theorem using Dirichlet L-Series.
References
Courant, R. and Robbins, H. ``Primes in Arithmetical Progressions.'' §1.2b in Supplement to Ch. 1 in What is Mathematics?: An Elementary Approach to Ideas and Methods, 2nd ed. Oxford, England: Oxford University Press, pp. 26-27, 1996. Shanks, D. Solved and Unsolved Problems in Number Theory, 4th ed. New York: Chelsea, pp. 22-23, 1993.
- Quasitruncated Great Stellated Dodecahedron
- Quasitruncated Hexahedron
- Quasitruncated Small Stellated Dodecahedron
- Quasi-Unipotent Group
- Quasi-Unipotent Problem
- Quaternary
- Quaternary Tree
- Quaternion
- Quattuordecillion
- Queens Problem
- Queue
- Queuing Theory
- Quicksort
- Quillen-Lichtenbaum Conjecture
- Quincunx
- Quindecillion
- Quintet
- Quintic Equation
- Quintic Surface
- Quintillion
- Quintuple
- Quintuple Product Identity
- Quintuplet
- Quota Rule
- Quota System