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Reorientation Class

The reorientation class of a set **F** of
sign vectors on a
ground set E is the equivalence class
defined by reorientations of **F**, where a reorientation of **F**
is defined as the operation which reverts for a given subset S of E the signs
of the elements belonging to S in every sign
vector of **F**.

Maintained by Lukas Finschi (finschi [at] ifor.math.ethz.ch)