# Uncovered set

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The **uncovered set** is defined for a set of rank-order preferences. Usually, the uncovered set is defined only for situations without pairwise ties. When there are no pairwise ties, then the uncovered set is identical to the set called **Fishburn winners**:

Select the candidate or candidates that are not Fishburn losers. A candidate

iis a Fishburn loser if there is some other candidatejsuch that every candidate that pairwise beatsjalso pairwise beatsiand there is at least one candidate that pairwise beatsibut does not pairwise beatj.