# Hermite-Lindemann-Weierstrass Theorem

## Theorem

Let $a_1, \cdots, a_n$ be algebraic numbers (possibly complex) that are linearly independent over the rational numbers $\Q$.

Then:

$e^{a_1}, \cdots, e^{a_n}$ are algebraically independent.

where $e$ is Euler's number.

### Weaker

Let $a$ be a non-zero algebraic number (possibly complex).

Then:

$e^a$ is transcendental

where $e$ is Euler's number.

## Also known as

Also known as:

• The Lindemann-Weierstrass Theorem
• The Hermite-Lindemann Theorem

## Source of Name

This entry was named for Charles HermiteCarl Louis Ferdinand von Lindemann and Karl Theodor Wilhelm Weierstrass.