Subfield
If a subset 
of the elements of a Field 
satisfies the Field Axioms with the same operations of ,then is called a subfield of . Let be a Finite Field of order 
, then there exists a subfield ofOrder 
for Prime 
Iff 
Divides 
.
- Lancret's Theorem
- Lanczos Approximation
- Lanczos Sigma Factor
- Landau Constant
- Landau-Kolmogorov Constants
- Landau-Ramanujan Constant
- Landau Symbol
- Landen's Formula
- Landen's Transformation
- Lane-Emden Differential Equation
- Langford's Problem
- Langlands Program
- Langlands Reciprocity
- Langton's Ant
- Laplace-Beltrami Operator
- Laplace Distribution
- Laplace Limit
- Laplace-Mehler Integral
- Laplace's Equation
- Laplace's Equation--Bipolar Coordinates
- Laplace's Equation--Bispherical Coordinates
- Laplace's Equation--Toroidal Coordinates
- Laplace Series
- Laplace's Integral
- Laplace-Stieltjes Transform