# Formula:DLMF:25.12:E6

${\displaystyle{\displaystyle{\displaystyle\Dilogarithm@{x}+\Dilogarithm@{1-x}=% \frac{1}{6}{\pi^{2}}-(\ln x)\ln\left(1-x\right)}}}$

## Constraint(s)

${\displaystyle{\displaystyle{\displaystyle 0

## Proof

We ask users to provide proof(s), reference(s) to proof(s), or further clarification on the proof(s) in this space.

## Symbols List

: dilogarithm : http://dlmf.nist.gov/25.12#E1
: ratio of a circle's circumference to its diameter : http://dlmf.nist.gov/5.19.E4
: principal branch of logarithm function : http://dlmf.nist.gov/4.2#E2